Publications 2023

Gjerde H, Strand MC (2023)
Legal limits for driving under the influence of illicit drugs: large variations between jurisdictions
Forensic Sci Int Rep, 8, 100336
DOI 10.1016/j.fsir.2023.100336, PublikaID 443

Publications 2022

Gjerde H, Bretteville-Jensen AL, Furuhaugen H (2022)
Poor correlation between alcohol concentration in oral fluid and breath in subjects consuming beverages immediately before testing
Biochem. Medica., 32 (1), 010902
DOI 10.11613/BM.2022.010902

Publications 2021

Gjerde H, Bretteville-Jensen AL, Bache-Andreassen L, Hanoa K, Furuhaugen H, Brochmann GW, Vindenes V (2021)
Which illicit drugs are injected in Oslo? A study based on analysis of drug residues in used injection equipment and self-reported information
Scand. J. Public Health, 14034948211043984
DOI 10.1177/14034948211043984

Jorgenrud B, Furuhaugen H, Gjerde H (2021)
Prevalence and Correlates of Illicit Drug Use among Norwegian Nightlife Patrons
Subst. Use Misuse, 56 (11), 1697-1706
DOI 10.1080/10826084.2021.1949613

Oyono Y, Gjerde H, Asongalem EA, Nteungue BAK, Bamuh E, Ngako AD, Kelley-Baker T, Ramaekers JG, Sonwa LL, Enow-Orock G, Akum EA (2021)
Roadside surveys of drinking and driving in Cameroon
Traffic Inj. Prev., 22 (5), 349-354
DOI 10.1080/15389588.2021.1922682

Pasnin LT, Gjerde H (2021)
Alcohol and drug use among road users involved in fatal crashes in Norway
Traffic Inj. Prev., 22 (4), 267-271
DOI 10.1080/15389588.2021.1887854

Sundet M, Mulima G, Kajombo C, Gjerde H, Christophersen AS, Madsen JE, Young S (2021)
Geographical mapping of road traffic injuries in Lilongwe, Malawi
Injury-Int. J. Care Inj., 52 (4), 806-813
DOI 10.1016/j.injury.2021.02.028

Publications 2020

Bakke E, Hoiseth G, Furuhaugen H, Berg T, Arnestad M, Gjerde H (2020)
Oral Fluid to Blood Concentration Ratios of Different Psychoactive Drugs in Samples from Suspected Drugged Drivers
Ther. Drug Monit., 42 (5), 795-800
DOI 10.1097/FTD.0000000000000760

Christophersen AS, Karinen R, Morland J, Gjerde H (2020)
The implementation of per-se limits for driving under the influence of benzodiazepines and related drugs: No increased risk for arrest during therapeutic use in Norway
Traffic Inj. Prev., 21 (2), 122-126
DOI 10.1080/15389588.2020.1724977

Gjerde H, Bretteville-Jensen AL, Furuhaugen H, Bache-Andreassen L, Bergh MSS, Vindenes V (2020)
Determination of drug residues in used syringe needles
Drug Test. Anal., 12 (3), 410-416
DOI 10.1002/dta.2759

Jamt REG, Gjerde H, Furuhaugen H, Romeo G, Vindenes V, Ramaekers JG, Bogstrand ST (2020)
Associations between psychoactive substance use and sensation seeking behavior among drivers in Norway
BMC Public Health, 20 (1), 23
DOI 10.1186/s12889-019-8087-0

Sundet M, Kajombo C, Mulima G, Bogstrand ST, Varela C, Young S, Christophersen AS, Gjerde H (2020)
Prevalence of alcohol use among road traffic crash victims presenting to a Malawian Central Hospital: A cross-sectional study
Traffic Inj. Prev., 21 (8), 527-532
DOI 10.1080/15389588.2020.1819990

Sundet M, Mulima G, Kajombo C, Gjerde H, Christophersen AS, Young S (2020)
Adult pedestrian and cyclist injuries in Lilongwe, Malawi: a cross-sectional study
Malawi Med. J., 32 (4), 197-204
DOI 10.4314/mmj.v32i4.4

Publications 2019

Bakke E, Hoiseth G, Arnestad M, Gjerde H (2019)
Detection of Drugs in Simultaneously Collected Samples of Oral Fluid and Blood
J. Anal. Toxicol., 43 (3), 228-232
DOI 10.1093/jat/bky079

Bretteville-Jensen AL, Andreas JB, Gjersing L, Oiestad EL, Gjerde H (2019)
Identification and Assessment of Drug-User Groups Among Nightlife Attendees: Self-Reports, Breathalyzer-Tests and Oral Fluid Drug Tests
Eur. Addict. Res., 25 (2), 93-102
DOI 10.1159/000497318

Gjerde H, Gjersing L, Baz-Lomba JA, Bijlsma L, Salgueiro-Gonzalez N, Furuhaugen H, Bretteville-Jensen AL, Hernandez F, Castiglioni S, Amundsen EJ, Zuccato E (2019)
Drug Use by Music Festival Attendees: A Novel Triangulation Approach Using Self-Reported Data and Test Results of Oral Fluid and Pooled Urine Samples
Subst. Use Misuse, 54 (14), 2317-2327
DOI 10.1080/10826084.2019.1646285

Gjerde H, Gjersing L, Furuhaugen H, Bretteville-Jensen AL (2019)
Correspondence between Oral Fluid Drug Test Results and Self-Reported Illicit Drug Use among Music Festival Attendees
Subst. Use Misuse, 54 (8), 1337-1344
DOI 10.1080/10826084.2019.1580295

Gjersing L, Bretteville-Jensen AL, Furuhaugen H, Gjerde H (2019)
Illegal substance use among 1,309 music festival attendees: An investigation using oral fluid sample drug tests, breathalysers and questionnaires
Scand. J. Public Health, 47 (4), 400-407
DOI 10.1177/1403494818821481

Jamt REG, Gjerde H, Romeo G, Bogstrand ST (2019)
Association between alcohol and drug use and arrest for driving under the influence after crash involvement in a rural area of Norway: a case-control study
BMJ Open, 9 (1), e023563
DOI 10.1136/bmjopen-2018-023563

Leyton V, Bombana HS, Magalhaes JG, Panizza HN, Sinagawa DM, Takitane J, de Carvalho HB, Andreuccetti G, Yonamine M, Gjerde H, Munoz DR (2019)
Trends in the use of psychoactive substances by truck drivers in SAo Paulo State, Brazil: A time-series cross sectional roadside survey (2009-2016)
Traffic Inj. Prev., 20 (2), 122-127
DOI 10.1080/15389588.2018.1552786

Nyman AAT, Jamt REG, Nilsson G, Gjerde H, Bogstrand ST (2019)
Rusmidler og trafikkfarlige legemidler blant bilførere i Finnmark fylke og Murmansk-regionen.
Oslo universitetssykehus, Oslo
PublikaID 409

Ponce JD, Andreuccetti G, Goncalves REM, Gjerde H, Bogstrand ST, Valen A, Leyton V, de Carvalho HB (2019)
Comparison of traffic data and blood alcohol concentration among fatally injured drivers in Norway and Sao Paulo, Brazil, 2005-2015
Traffic Inj. Prev., 20 (7), 673-678
DOI 10.1080/15389588.2019.1648797

Strand MC, Ramaekers JG, Gjerde H, Morland J, Vindenes V (2019)
Pharmacokinetics of Single Doses of Methadone and Buprenorphine in Blood and Oral Fluid in Healthy Volunteers and Correlation With Effects on Psychomotor and Cognitive Functions
J. Clin. Psychopharmacol., 39 (5), 489-493
DOI 10.1097/JCP.0000000000001077

Strand MC, Vindenes V, Gjerde H, Morland JG, Ramaekers JG (2019)
A clinical trial on the acute effects of methadone and buprenorphine on actual driving and cognitive function of healthy volunteers
Br. J. Clin. Pharmacol., 85 (2), 442-453
DOI 10.1111/bcp.13818

Valen A, Bogstrand ST, Vindenes V, Frost J, Larsson M, Holtan A, Gjerde H (2019)
Fatally injured drivers in Norway 2005-2015-Trends in substance use and crash characteristics
Traffic Inj. Prev., 20 (5), 460-466
DOI 10.1080/15389588.2019.1616700

Valen A, Bogstrand ST, Vindenes V, Frost J, Larsson M, Holtan A, Gjerde H (2019)
Driver-related risk factors of fatal road traffic crashes associated with alcohol or drug impairment
Accid. Anal. Prev., 131, 191-199
DOI 10.1016/j.aap.2019.06.014

Publications 2018

Breen JM, Naess PA, Gjerde H, Gaarder C, Stray-Pedersen A (2018)
The significance of preexisting medical conditions, alcohol/drug use and suicidal behavior for drivers in fatal motor vehicle crashes: a retrospective autopsy study
Forensic Sci. Med. Pathol., 14 (1), 4-17
DOI 10.1007/s12024-017-9934-x

Furuhaugen H, Jamt REG, Nilsson G, Vindenes V, Gjerde H (2018)
Roadside survey of alcohol and drug use among Norwegian drivers in 2016-2017: A follow-up of the 2008-2009 survey
Traffic Inj. Prev., 19 (6), 555-562
DOI 10.1080/15389588.2018.1478087

Gjerde H, Clausen GB, Andreassen E, Furuhaugen H (2018)
Evaluation of Drager Drug Test 5000 in a Naturalistic Setting
J. Anal. Toxicol., 42 (4), 248-254
DOI 10.1093/jat/bky003

Gjerde H, Romeo G, Morland P (2018)
Challenges and common weaknesses in case-control studies on drug use and road traffic injury based on drug testing of biological samples
Ann. Epidemiol., 28 (11), 812-820
DOI 10.1016/j.annepidem.2018.08.006

Jorgenrud B, Bogstrand ST, Furuhaugen H, Jamt REG, Vindenes V, Gjerde H (2018)
Association between speeding and use of alcohol and medicinal and illegal drugs and involvement in road traffic crashes among motor vehicle drivers
Traffic Inj. Prev., 19 (8), 779-785
DOI 10.1080/15389588.2018.1518577

Takitane J, Leyton V, Andreuccetti G, Gjerde H, Vindenes V, Berg T (2018)
Determination of cocaine, metabolites and a crack cocaine biomarker in whole blood by liquid-liquid extraction and UHPLC-MS/MS
Forensic Sci.Int., 289, 165-174
DOI 10.1016/j.forsciint.2018.05.030

Publications 2017

Bombana HS, Gjerde H, dos Santos MF, Jamt REG, Yonamine M, Rohlfs WJC, Munoz DR, Leyton V (2017)
Prevalence of drugs in oral fluid from truck drivers in Brazilian highways
Forensic Sci.Int., 273, 140-143
DOI 10.1016/j.forsciint.2017.02.023

Jamt REG, Gjerde H, Normann PT, Bogstrand ST (2017)
Roadside survey on alcohol and drug use among drivers in the Arctic county of Finnmark (Norway)
Traffic Inj. Prev., 18 (7), 681-687
DOI 10.1080/15389588.2017.1283027

Valen A, Bogstrand ST, Vindenes V, Gjerde H (2017)
Increasing use of cannabis among arrested drivers in Norway
Traffic Inj. Prev., 18 (8), 801-806
DOI 10.1080/15389588.2017.1321114

Valen A, Bogstrand ST, Vindenes V, Gjerde H (2017)
Toxicological findings in suspected drug-impaired drivers in Norway Trends during 1990-2015
Forensic Sci.Int., 280, 15-24
DOI 10.1016/j.forsciint.2017.09.010

Publications 2016

Edvardsen HME, Moan IS, Christophersen AS, Gjerde H (2016)
Bruk av rusmidler, sløvende legemidler og tobakk blant arbeidstakere i utvalgte bransjer i Norge
Rapport, x, x
PublikaID 269

Gjerde H, Morland J (2016)
RISK FOR INVOLVEMENT IN ROAD TRAFFIC CRASH DURING ACUTE CANNABIS INTOXICATION
Addiction, 111 (8), 1492-1495
DOI 10.1111/add.13435

Gjerde H, Nordfjaern T, Bretteville-Jensen AL, Edland-Gryt M, Furuhaugen H, Karinen R, Oiestad EL (2016)
Comparison of drugs used by nightclub patrons and criminal offenders in Oslo, Norway
Forensic Sci.Int., 265, 1-5
DOI 10.1016/j.forsciint.2015.12.029

Vindenes V, Strand DH, Koksaeter P, Gjerde H (2016)
Detection of Nitrobenzodiazepines and Their 7-Amino Metabolites in Oral Fluid
J. Anal. Toxicol., 40 (4), 310-312
DOI 10.1093/jat/bkw020

Publications 2015

Bogstrand ST, Larsson M, Holtan A, Staff T, Vindenes V, Gjerde H (2015)
Associations between driving under the influence of alcohol or drugs, speeding and seatbelt use among fatally injured car drivers in Norway
Accid. Anal. Prev., 78, 14-19
DOI 10.1016/j.aap.2014.12.025

Christophersen AS, Gjerde H (2015)
Prevalence of alcohol and drugs among motorcycle riders killed in road crashes in Norway during 2001-2010
Accid. Anal. Prev., 80, 236-242
DOI 10.1016/j.aap.2015.04.017

Edvardsen HME, Moan IS, Christophersen AS, Gjerde H (2015)
Use of alcohol and drugs by employees in selected business areas in Norway: a study using oral fluid testing and questionnaires
J. Occup. Med. Toxicol., 10, 46
DOI 10.1186/s12995-015-0087-0

Gjerde H, Langel K, Favretto D, Verstraete AG (2015)
Detection of illicit drugs in oral fluid from drivers as biomarker for drugs in blood
Forensic Sci.Int., 256, 42-45
DOI 10.1016/j.forsciint.2015.06.027

Hoiseth G, Middelkoop G, Morland J, Gjerde H (2015)
Has Previous Abuse of Flunitrazepam Been Replaced by Clonazepam?
Eur. Addict. Res., 21 (4), 217-221
DOI 10.1159/000377628

Sinagawa DM, De Carvalho HB, Andreuccetti G, Do Prado NV, De Oliveira KCBG, Yonamine M, Munoz DR, Gjerde H, Leyton V (2015)
Association Between Travel Length and Drug Use Among Brazilian Truck Drivers
Traffic Inj. Prev., 16 (1), 5-9
DOI 10.1080/15389588.2014.906589

Publications 2014

Bogstrand ST, Gjerde H (2014)
Which drugs are associated with highest risk for being arrested for driving under the influence? A case-control study
Forensic Sci.Int., 240, 21-28
DOI 10.1016/j.forsciint.2014.03.027

Christophersen AS, Gjerde H (2014)
Prevalence of Alcohol and Drugs Among Car and Van Drivers Killed in Road Accidents in Norway: An Overview From 2001 to 2010
Traffic Inj. Prev., 15 (6), 523-531
DOI 10.1080/15389588.2013.848981

Edvardsen HME, Karinen R, Moan IS, Oiestad EL, Christophersen AS, Gjerde H (2014)
Use of alcohol and drugs among health professionals in Norway: a study using data from questionnaires and samples of oral fluid
J. Occup. Med. Toxicol., 9, 8
DOI 10.1186/1745-6673-9-8

Gjerde H, Bogstrand ST, Lillsunde P (2014)
Commentary: Why Is the Odds Ratio for Involvement in Serious Road Traffic Accident Among Drunk Drivers in Norway and Finland Higher Than in Other Countries?
Traffic Inj. Prev., 15 (1), 1-5
DOI 10.1080/15389588.2013.780651

Gjerde H, Langel K, Favretto D, Verstraete AG (2014)
Estimation of Equivalent Cutoff Thresholds in Blood and Oral Fluid for Drug Prevalence Studies
J. Anal. Toxicol., 38 (2), 92-98
DOI 10.1093/jat/bkt122

Gjerde H, Langel K, Favretto D, Verstraete AG (2014)
Detection of 4 Benzodiazepines in Oral Fluid as Biomarker for Presence in Blood
Ther. Drug Monit., 36 (2), 252-256
DOI 10.1097/FTD.0b013e3182a3ab42

Gjerde H, Sousa TR, De Boni R, Christophersen AS, Limberger RP, Zancanaro I, Oiestad EL, Normann PT, Morland J, Pechansky F (2014)
A comparison of alcohol and drug use by random motor vehicle drivers in Brazil and Norway
Int. J. Drug Policy, 25 (3), 393-400
DOI 10.1016/j.drugpo.2014.01.019

Langel K, Gjerde H, Favretto D, Lillsunde P, Oiestad EL, Ferrara SD, Verstraete AG (2014)
Comparison of drug concentrations between whole blood and oral fluid
Drug Test. Anal., 6 (5), 461-471
DOI 10.1002/dta.1532

Legrand SA, Gjerde H, Isalberti C, Van der Linden T, Lillsunde P, Dias MJ, Gustafsson S, Ceder G, Verstraete AG (2014)
Prevalence of alcohol, illicit drugs and psychoactive medicines in killed drivers in four European countries
Int. J. Inj. Control Saf. Promot., 21 (1), 17-28
DOI 10.1080/17457300.2012.748809

Vindenes V, Boix F, Koksaeter P, Strand MC, Bachs L, Morland J, Gjerde H (2014)
Drugged driving arrests in Norway before and after the implementation of per se law
Forensic Sci.Int., 245, 171-177
DOI 10.1016/j.forsciint.2014.10.038

Publications 2013

Gjerde H, Christophersen AS, Normann PT, Assum T, Oiestad EL, Morland J (2013)
Norwegian Roadside Survey of Alcohol and Drug Use by Drivers (2008-2009)
Traffic Inj. Prev., 14 (5), 443-452
DOI 10.1080/15389588.2012.728016

Gjerde H, Christophersen AS, Normann PT, Morland J (2013)
Associations between substance use among car and van drivers in Norway and fatal injury in road traffic accidents: A case-control study
Transp. Res. Pt. F-Traffic Psychol. Behav., 17, 134-144
DOI 10.1016/j.trf.2012.11.004

Gjerde H, Christophersen AS, Normann PT, Morland J (2013)
INCREASED POPULATION DRINKING IS NOT ALWAYS ASSOCIATED WITH INCREASED NUMBER OF DRINK DRIVING CONVICTIONS
Addiction, 108 (12), 2221-2223
DOI 10.1111/add.12342

Lund HME, Gjerde H, de Courtade SMB, Oiestad EL, Christophersen AS (2013)
A Norwegian Study of the Suitability of Hair Samples in Epidemiological Research of Alcohol, Nicotine and Drug Use
J. Anal. Toxicol., 37 (6), 362-368
DOI 10.1093/jat/bkt038

Lund HME, Gjerde H, DeCourtade SM, Øiestad EL, Christophersen AS (2013)
A Norwegian study of the suitability of hair samples in epidemiological research of alcohol, nicotine and drug use
J Anal Toxicol, 37 (6), 362-8
DOI 10.1093/jat/bkt038 , PublikaID 266

Publications 2012

Bogstrand ST, Gjerde H, Normann PT, Rossow I, Ekeberg O (2012)
Alcohol, psychoactive substances and non-fatal road traffic accidents - a case-control study
BMC Public Health, 12, 734
DOI 10.1186/1471-2458-12-734

Das A, Gjerde H, Gopalan SS, Normann PT (2012)
Alcohol, Drugs, and Road Traffic Crashes in India: A Systematic Review
Traffic Inj. Prev., 13 (6), 544-553
DOI 10.1080/15389588.2012.663518

Gjerde H, Christophersen AS, Normann PT, Pettersen BS, Sabaredzovic A, Samuelsen SO, Morland J (2012)
Analysis of Alcohol and Drugs in Oral Fluid From Truck Drivers in Norway
Traffic Inj. Prev., 13 (1), 43-48
DOI 10.1080/15389588.2011.627957

Reid MJ, Langford KH, Grung M, Gjerde H, Amundsen EJ, Morland J, Thomas KV (2012)
Estimation of cocaine consumption in the community: a critical comparison of the results from three complimentary techniques
BMJ Open, 2 (6), e001637
DOI 10.1136/bmjopen-2012-001637

Vindenes V, Lund HME, Andresen W, Gjerde H, Ikdahl SE, Christophersen AS, Oiestad EL (2012)
Detection of drugs of abuse in simultaneously collected oral fluid, urine and blood from Norwegian drug drivers
Forensic Sci.Int., 219 (1-3)
DOI 10.1016/j.forsciint.2012.01.001

Vindenes V, Lund HME, Andresen W, Gjerde H, Ikdahl SE, Christophersen AS, Øiestad EL (2012)
Detection of drugs of abuse in simultaneously collected oral fluid, urine and blood from Norwegian drug drivers
Forensic Sci Int, 219 (1-3), 165
PublikaID 265

Publications 2011

Gjerde H, Christophersen AS, Normann PT, Morland J (2011)
Toxicological investigations of drivers killed in road traffic accidents in Norway during 2006-2008
Forensic Sci.Int., 212 (1-3), 102-109
DOI 10.1016/j.forsciint.2011.05.021

Gjerde H, Normann PT, Christophersen AS, Morland J (2011)
Prevalence of driving with blood drug concentrations above proposed new legal limits in Norway: Estimations based on drug concentrations in oral fluid
Forensic Sci.Int., 210 (1-3), 221-227
DOI 10.1016/j.forsciint.2011.03.021

Gjerde H, Normann PT, Christophersen AS, Samuelsen SO, Morland J (2011)
Alcohol, psychoactive drugs and fatal road traffic accidents in Norway: A case-control study
Accid. Anal. Prev., 43 (3), 1197-1203
DOI 10.1016/j.aap.2010.12.034

Gjerde H, Verstraete AG (2011)
Estimating equivalent cutoff thresholds for drugs in blood and oral fluid using prevalence regression: A study of tetrahydrocannabinol and amphetamine
Forensic Sci.Int., 212 (1-3), E26-E30
DOI 10.1016/j.forsciint.2011.06.024

Gjerde H, Øiestad EL, Christophersen AS (2011)
Using biological samples in epidemiological research on drugs of abuse
Norsk Epidemiologi, 21 (1), 5-14
PublikaID 293

Lund HME, Oiestad EL, Gjerde H, Christophersen AS (2011)
Drugs of abuse in oral fluid collected by two different sample kits - Stability testing and validation using ultra performance tandem mass spectrometry analysis
J. Chromatogr. B, 879 (30), 3367-3377
DOI 10.1016/j.jchromb.2011.09.002

Lund HME, Øiestad EL, Gjerde H, Christophersen AS (2011)
Drugs of abuse in oral fluid collected by two different sample kits-stability testing and validation using ultra performance tandem mass spectrometry analysis.
J Chromatogr B Analyt Technol Biomed Life Sci, 879 (30), 3367-77
DOI 10.1016/j.jchromb.2011.09.002 , PublikaID 263

Publications 2010

Gjerde H, Christophersen AS, Moan IS, Yttredal B, Walsh JM, Normann PT, Morland J (2010)
Use of alcohol and drugs by Norwegian employees: a pilot study using questionnaires and analysis of oral fluid
J. Occup. Med. Toxicol., 5, 13
DOI 10.1186/1745-6673-5-13

Gjerde H, Mordal J, Christophersen AS, Bramness JG, Morland J (2010)
Comparison of Drug Concentrations in Blood and Oral Fluid Collected with the Intercept (R) Sampling Device
J. Anal. Toxicol., 34 (4), 204-209
DOI 10.1093/jat/34.4.204

Gjerde H, Normann PT, Christophersen AS (2010)
The Prevalence of Alcohol and Drugs in Sampled Oral Fluid is Related to Sample Volume
J. Anal. Toxicol., 34 (7), 416-419
DOI 10.1093/jat/34.7.416

Gjerde H, Oiestad EL, Oiestad AML, Langodegard M, Gustavsen I, Hjelmeland K, Bernard JP, Christophersen AS (2010)
Comparison of Zopiclone Concentrations in Oral Fluid Sampled with Intercept (R) Oral Specimen Collection Device and Statsure Saliva Sampler (TM) and Concentrations in Blood
J. Anal. Toxicol., 34 (9), 590-593
DOI 10.1093/jat/34.9.590

Gjerde H, Verstraete A (2010)
Can the prevalence of high blood drug concentrations in a population be estimated by analysing oral fluid? A study of tetrahydrocannabinol and amphetamine
Forensic Sci.Int., 195 (1-3), 153-159
DOI 10.1016/j.forsciint.2009.12.011

Hoiseth G, Yttredal B, Karinen R, Gjerde H, Christophersen A (2010)
Levels of Ethyl Glucuronide and Ethyl Sulfate in Oral Fluid, Blood, and Urine After Use of Mouthwash and Ingestion of Nonalcoholic Wine
J. Anal. Toxicol., 34 (2), 84-88
DOI 10.1093/jat/34.2.84

Hoiseth G, Yttredal B, Karinen R, Gjerde H, Morland J, Christophersen A (2010)
Ethyl Glucuronide Concentrations in Oral Fluid, Blood, and Urine After Volunteers Drank 0.5 and 1.0 g/kg Doses of Ethanol
J. Anal. Toxicol., 34 (6), 319-324
DOI 10.1093/jat/34.6.319

Publications 2008

Gjerde H, Normann PT, Pettersen BS, Assum T, Aldrin M, Johansen U, Kristoffersen L, Oiestad EL, Christophersen AS, Morland J (2008)
Prevalence of alcohol and drugs among Norwegian motor vehicle drivers: A roadside survey
Accid. Anal. Prev., 40 (5), 1765-1772
DOI 10.1016/j.aap.2008.06.015

Publications 2001

Gjerde H, Snotun A, Hem H, Larsen KH, Dohl J (2001)
Determination of mangafodipir trisodium and related impurities in bulk substance and pharmaceutical formulation by ion-pair high-performance liquid chromatography
J. Pharm. Biomed. Anal., 25 (1), 109-114
DOI 10.1016/S0731-7085(00)00500-8

Publications 1993

GJERDE H, BEYLICH KM, MORLAND J (1993)
INCIDENCE OF ALCOHOL AND DRUGS IN FATALLY INJURED CAR DRIVERS IN NORWAY
Accid. Anal. Prev., 25 (4), 479-483
DOI 10.1016/0001-4575(93)90078-B

GJERDE H, HASVOLD I, PETTERSEN G, CHRISTOPHERSEN AS (1993)
DETERMINATION OF AMPHETAMINE AND METHAMPHETAMINE IN BLOOD BY DERIVATIZATION WITH PERFLUOROOCTANOYL CHLORIDE AND GAS-CHROMATOGRAPHY MASS-SPECTROMETRY
J. Anal. Toxicol., 17 (2), 65-68
DOI 10.1093/jat/17.2.65

Publications 1992

GJERDE H, DAHLIN E, CHRISTOPHERSEN AS (1992)
SIMULTANEOUS DETERMINATION OF COMMON BENZODIAZEPINES IN BLOOD USING CAPILLARY GAS-CHROMATOGRAPHY
J. Pharm. Biomed. Anal., 10 (5), 317-322
DOI 10.1016/0731-7085(92)80046-P

Publications 1991

GJERDE H (1991)
SCREENING FOR CANNABINOIDS IN BLOOD USING EMIT - CONCENTRATIONS OF DELTA-9-TETRAHYDROCANNABINOL IN RELATION TO EMIT RESULTS
Forensic Sci.Int., 50 (1), 121-124
DOI 10.1016/0379-0738(91)90140-E

GJERDE H, FONGEN U, GUNDERSEN H, CHRISTOPHERSEN AS (1991)
EVALUATION OF A METHOD FOR SIMULTANEOUS QUANTIFICATION OF CODEINE, ETHYLMORPHINE AND MORPHINE IN BLOOD
Forensic Sci.Int., 51 (1), 105-110
DOI 10.1016/0379-0738(91)90210-A

GJERDE H, KINN G (1991)
IMPAIRMENT IN DRIVERS DUE TO CANNABIS IN COMBINATION WITH OTHER DRUGS
Forensic Sci.Int., 50 (1), 57-60
DOI 10.1016/0379-0738(91)90133-4

GJERDE H, MORLAND J (1991)
A CASE OF HIGH OPIATE TOLERANCE - IMPLICATIONS FOR DRUG ANALYSES AND INTERPRETATIONS
Int. J. Legal Med., 104 (4), 239-240
DOI 10.1007/BF01369814

Publications 1990

CHRISTOPHERSEN AS, GJERDE H, BJORNEBOE A, SAKSHAUG J, MORLAND J (1990)
SCREENING FOR DRUG-USE AMONG NORWEGIAN DRIVERS SUSPECTED OF DRIVING UNDER INFLUENCE OF ALCOHOL OR DRUGS
Forensic Sci.Int., 45 (1-2), 5-14
DOI 10.1016/0379-0738(90)90216-L

GJERDE H, CHRISTOPHERSEN AS, SKUTERUD B, KLEMETSEN K, MORLAND J (1990)
SCREENING FOR DRUGS IN FORENSIC BLOOD-SAMPLES USING EMIT URINE ASSAYS
Forensic Sci.Int., 44 (2-3), 179-185
DOI 10.1016/0379-0738(90)90248-W

GJERDE H, SMITHKIELLAND A, NORMANN PT, MORLAND J (1990)
DRIVING UNDER THE INFLUENCE OF TOLUENE
Forensic Sci.Int., 44 (1), 77-83
DOI 10.1016/0379-0738(90)90170-4

Publications 1989

SOLLID LM, MARKUSSEN G, EK J, GJERDE H, VARTDAL F, THORSBY E (1989)
EVIDENCE FOR A PRIMARY ASSOCIATION OF CELIAC-DISEASE TO A PARTICULAR HLA-DQ ALPHA-BETA HETERODIMER
J. Exp. Med., 169 (1), 345-350
DOI 10.1084/jem.169.1.345

Publications 1988

GJERDE H, BJORNEBOE A, BJORNEBOE GEA, BUGGE A, DREVON CA, MORLAND J (1988)
A 3-YEAR PROSPECTIVE-STUDY OF REARRESTS FOR DRIVING UNDER INFLUENCE OF ALCOHOL OR DRUGS
Accid. Anal. Prev., 20 (1), 53-57
DOI 10.1016/0001-4575(88)90014-0

GJERDE H, JOHNSEN J, BJORNEBOE A, BJORNEBOE GEA, MORLAND J (1988)
A COMPARISON OF SERUM CARBOHYDRATE-DEFICIENT TRANSFERRIN WITH OTHER BIOLOGICAL MARKERS OF EXCESSIVE DRINKING
Scand. J. Clin. Lab. Invest., 48 (1), 1-6

GJERDE H, MORLAND J (1988)
A 2-YEAR PROSPECTIVE-STUDY OF REARRESTS FOR DRUNKEN DRIVING
Scand. J. Soc. Med., 16 (2), 111-113
DOI 10.1177/140349488801600209

Publications 1987

BJORNEBOE A, BJORNEBOE GEAA, GJERDE H, BUGGE A, DREVON CA, MORLAND J (1987)
A RETROSPECTIVE STUDY OF DRUGGED DRIVING IN NORWAY
Forensic Sci.Int., 33 (4), 243-251
DOI 10.1016/0379-0738(87)90105-8

GJERDE H (1987)
DAILY DRINKING AND DRUNKEN DRIVING
Scand. J. Soc. Med., 15 (2), 73-77
DOI 10.1177/140349488701500204

GJERDE H, AMUNDSEN A, SKOG OJ, MORLAND J, AASLAND OG (1987)
SERUM GAMMA-GLUTAMYL-TRANSFERASE - AN EPIDEMIOLOGIC INDICATOR OF ALCOHOL-CONSUMPTION
BRIT J ADDICT, 82 (9), 1027-1031

GJERDE H, MORLAND J (1987)
CONCENTRATIONS OF CARBOHYDRATE-DEFICIENT TRANSFERRIN IN DIALYZED PLASMA FROM DRUNKEN DRIVERS
Alcohol Alcohol., 22 (3), 271-276

GJERDE H, NORMANN PT, MORLAND J (1987)
DETERMINATION OF SERUM TRYPTOPHAN BY ISOCRATIC HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY AND ULTRAVIOLET DETECTION
BIOMED BIOCHIM ACTA, 46 (1), 53-57

Publications 1986

GJERDE H, SAKSHAUG J, MORLAND J (1986)
HEAVY DRINKING AMONG NORWEGIAN MALE DRUNKEN DRIVERS - A STUDY OF GAMMA-GLUTAMYL-TRANSFERASE
Alcoholism (NY), 10 (2), 209-212
DOI 10.1111/j.1530-0277.1986.tb05073.x

Publications 1985

GJERDE H, GADEHOLT G, OLSEN H, MORLAND J, NORMAN N (1985)
11-DEOXYCORTISOL INDUCES HEPATIC TRYPTOPHAN OXYGENASE IN RATS
ACTA PHARMACOL TOX, 57 (1), 36-39

GJERDE H, MORLAND J (1985)
DETERMINATION OF GAMMA-GLUTAMYLTRANSFERASE IN COMPLETELY HEMOLYZED BLOOD-SAMPLES
Scand. J. Clin. Lab. Invest., 45 (7), 661-664
DOI 10.3109/00365518509155275

GJERDE H, MORLAND J, OLSEN H (1985)
THE ANTIGLUCOCORTICOID RU486 INHIBITS THE ETHANOL-INDUCED INCREASE OF TRYPTOPHAN OXYGENASE
J. Steroid Biochem. Mol. Biol., 23 (6A), 1091-1092
DOI 10.1016/0022-4731(85)90074-3

MORLAND J, STOWELL L, GJERDE H (1985)
ETHANOL INCREASES RAT-LIVER TRYPTOPHAN OXYGENASE - EVIDENCE FOR CORTICOSTERONE MEDIATION
Alcohol, 2 (2), 255-259
DOI 10.1016/0741-8329(85)90055-2

Publications 1984

GJERDE H, HELGELAND L (1984)
EFFECT OF WARFARIN ON ATP CONTENT, VIABILITY, GLYCOSYLATION AND PROTEIN-SYNTHESIS IN ISOLATED RAT HEPATOCYTES
ACTA PHARMACOL TOX, 54 (5), 385-388