Marius Rehn
- Senior Physician, Professor II; MD, PhD
Marius Rehn is a Consultant Anaesthesiologist working at the Rotor-Wing section at the Air Ambulance Department, Oslo University Hospital. He is also an Adjunct Professor at University of Oslo. His main research themes include pre-hospital critical care focussing on endovascular resuscitation, neonatal transfer and physiology-guided resuscitation. He is also the Editor-in-Chief of Scand J Trauma Resusc Emerg Med.
Publications 2024
Ketamine Analgo-sedation for Mechanically Ventilated Critically Ill Adults: A Rapid Practice Guideline from the Saudi Critical Care Society and the Scandinavian Society of Anesthesiology and Intensive Care Medicine
Anesth Analg (in press)
DOI 10.1213/ANE.0000000000007173, PubMed 39207913
Ketamine analgo-sedation for mechanically ventilated critically ill adults: A rapid practice guideline from the Saudi Critical Care Society and the Scandinavian Society of Anesthesiology and Intensive Care Medicine
Acta Anaesthesiol Scand, 68 (9), 1161-1178
DOI 10.1111/aas.14470, PubMed 39198198
Reporting interhospital neonatal intensive care transport: international five-step Delphi-based template
BMJ Paediatr Open, 8 (1)
DOI 10.1136/bmjpo-2023-002374, PubMed 38569741
Prehospital anaesthesiologists experience with cardiopulmonary resuscitation-induced consciousness in Norway - A national cross-sectional survey
Resusc Plus, 18, 100591
DOI 10.1016/j.resplu.2024.100591, PubMed 38439932
Contemporary management of traumatic cardiac arrest and peri-arrest states: a narrative review
J Anesth Analg Crit Care, 4 (1), 66
DOI 10.1186/s44158-024-00197-9, PubMed 39327636
Prehospital seizure management protocols need standardized guidelines. A descriptive study from Norway
Seizure, 123, 92-96
DOI 10.1016/j.seizure.2024.10.002, PubMed 39531982
Inhaled analgesics for the treatment of prehospital acute pain-A systematic review
Acta Anaesthesiol Scand, 68 (10), 1306-1318
DOI 10.1111/aas.14527, PubMed 39327650
Effect of systemic vascular resistance on the agreement between stroke volume by non-invasive pulse wave analysis and Doppler ultrasound in healthy volunteers
PLoS One, 19 (5), e0302159
DOI 10.1371/journal.pone.0302159, PubMed 38713665
Time difference between pad placement in single versus double external defibrillation: A live patient simulation model
Resusc Plus, 19, 100741
DOI 10.1016/j.resplu.2024.100741, PubMed 39185283
ESAIC focused guideline for the use of cardiac biomarkers in perioperative risk evaluation: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine
Acta Anaesthesiol Scand, 68 (9), 1179-1181
DOI 10.1111/aas.14472, PubMed 38860532
Publications 2023
The end of balloons? Our take on the UK-REBOA trial
Scand J Trauma Resusc Emerg Med, 31 (1), 69
DOI 10.1186/s13049-023-01142-5, PubMed 37908007
ISTH guidelines for antithrombotic treatment in COVID-19: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine
Acta Anaesthesiol Scand, 67 (8), 1118-1120
DOI 10.1111/aas.14259, PubMed 37318942
The Field's mass shooting: emergency medical services response
Scand J Trauma Resusc Emerg Med, 31 (1), 71
DOI 10.1186/s13049-023-01140-7, PubMed 37919753
Communication in Sudden-Onset Major Incidents: Patterns and Challenges-Scoping Review
Disaster Med Public Health Prep, 17, e482
DOI 10.1017/dmp.2023.132, PubMed 37681689
Ambulance and helicopter response time. Association with patient outcome and illness severity: Protocol of a systematic literature review and meta-analysis
Acta Anaesthesiol Scand, 68 (2), 287-296
DOI 10.1111/aas.14339, PubMed 37870745
Hemodynamic effects of supplemental oxygen versus air in simulated blood loss in healthy volunteers: a randomized, controlled, double-blind, crossover trial
Intensive Care Med Exp, 11 (1), 76
DOI 10.1186/s40635-023-00561-z, PubMed 37947905
Awake proning in patients with COVID-19-related hypoxemic acute respiratory failure: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine
Acta Anaesthesiol Scand, 68 (4), 444-446
DOI 10.1111/aas.14367, PubMed 38131369
Challenges and Risks in Out-of-Hospital Transport of Patients During the Coronavirus Disease 2019 Pandemic
Air Med J, 42 (3), 191-195
DOI 10.1016/j.amj.2023.02.002, PubMed 37150573
Saudi Critical Care Society clinical practice guidelines on the prevention of venous thromboembolism in adults with trauma: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine
Acta Anaesthesiol Scand, 67 (9), 1288-1290
DOI 10.1111/aas.14292, PubMed 37280639
Comparison of three regimens with inhalational methoxyflurane versus intranasal fentanyl versus intravenous morphine in pre-hospital acute pain management: study protocol for a randomized controlled trial (PreMeFen)
Trials, 24 (1), 571
DOI 10.1186/s13063-023-07590-9, PubMed 37670364
Publications 2022
Resuscitative endovascular balloon occlusion of the aorta: the postpartum haemorrhage perspective
Crit Care, 26 (1), 57
DOI 10.1186/s13054-022-03942-0, PubMed 35277189
Opioids for Treatment of Pre-hospital Acute Pain: A Systematic Review
Pain Ther, 11 (1), 17-36
DOI 10.1007/s40122-021-00346-w, PubMed 35041151
Inhaled nitric oxide as temporary respiratory stabilization in patients with COVID-19 related respiratory failure (INOCOV): Study protocol for a randomized controlled trial
PLoS One, 17 (5), e0268822
DOI 10.1371/journal.pone.0268822, PubMed 35622848
Effects of supplemental oxygen on systemic and cerebral hemodynamics in experimental hypovolemia: Protocol for a randomized, double blinded crossover study
PLoS One, 17 (6), e0270598
DOI 10.1371/journal.pone.0270598, PubMed 35749486
Therapeutics and COVID-19-A living WHO guideline: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine
Acta Anaesthesiol Scand, 66 (5), 636-637
DOI 10.1111/aas.14046, PubMed 35170027
Transfusion strategies in bleeding critically ill adults: A clinical practice guideline from the European Society of Intensive Care Medicine: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine
Acta Anaesthesiol Scand, 66 (5), 638-639
DOI 10.1111/aas.14047, PubMed 35170042
Regional anaesthesia in patients on antithrombotic drugs - a joint ESAIC/ESRA guideline: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine
Acta Anaesthesiol Scand, 66 (7), 887-889
DOI 10.1111/aas.14093, PubMed 35585832
Surviving sepsis campaign: International guidelines for management of sepsis and septic shock in adults 2021 - endorsement by the Scandinavian society of anaesthesiology and intensive care medicine
Acta Anaesthesiol Scand, 66 (5), 634-635
DOI 10.1111/aas.14045, PubMed 35170043
Publications 2021
REBOARREST, resuscitative endovascular balloon occlusion of the aorta in non-traumatic out-of-hospital cardiac arrest: a study protocol for a randomised, parallel group, clinical multicentre trial
Trials, 22 (1), 511
DOI 10.1186/s13063-021-05477-1, PubMed 34332617
Apnoeic oxygenation for emergency anaesthesia of pre-hospital trauma patients
Scand J Trauma Resusc Emerg Med, 29 (1), 10
DOI 10.1186/s13049-020-00817-7, PubMed 33413576
The Great Belt train accident: the emergency medical services response
Scand J Trauma Resusc Emerg Med, 29 (1), 140
DOI 10.1186/s13049-021-00954-7, PubMed 34556163
Pre-hospital critical care management of severe hypoxemia in victims of Covid-19: a case series
Scand J Trauma Resusc Emerg Med, 29 (1), 16
DOI 10.1186/s13049-021-00831-3, PubMed 33436033
Clinical practice guideline on the management of septic shock and sepsis-associated organ dysfunction in children: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine
Acta Anaesthesiol Scand, 65 (10), 1365-1366
DOI 10.1111/aas.13958, PubMed 34309852
Dispatch accuracy of physician-staffed emergency medical services in trauma care in south-east Norway: a retrospective observational study
Scand J Trauma Resusc Emerg Med, 29 (1), 169
DOI 10.1186/s13049-021-00982-3, PubMed 34876197
Clinical practice guideline on gastrointestinal bleeding prophylaxis for critically ill patients: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine
Acta Anaesthesiol Scand, 65 (4), 549-550
DOI 10.1111/aas.13773, PubMed 33370455
Clinical practice guideline on spinal stabilisation of adult trauma patients: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine
Acta Anaesthesiol Scand, 65 (7), 986-987
DOI 10.1111/aas.13933, PubMed 34048025
Publications 2020
A needs assessment of resuscitative endovascular balloon occlusion of the aorta (REBOA) in non-traumatic out-of-hospital cardiac arrest in Norway
BMC Emerg Med, 20 (1), 28
DOI 10.1186/s12873-020-00324-z, PubMed 32316924
Major incident management by helicopter emergency medical services in south-east Norway from 2000 to 2016: Retrospective cohort study
Acta Anaesthesiol Scand, 64 (7), 1014-1020
DOI 10.1111/aas.13583, PubMed 32232841
Top five research priorities in physician-provided pre-hospital critical care - appropriate staffing, training and the effect on outcomes
Scand J Trauma Resusc Emerg Med, 28 (1), 32
DOI 10.1186/s13049-020-00724-x, PubMed 32354344
Femoral nerve blocks for the treatment of acute pre-hospital pain: A systematic review with meta-analysis
Acta Anaesthesiol Scand, 64 (8), 1038-1047
DOI 10.1111/aas.13600, PubMed 32270488
Ketamine for the treatment of prehospital acute pain: a systematic review of benefit and harm
BMJ Open, 10 (11), e038134
DOI 10.1136/bmjopen-2020-038134, PubMed 33234621
Data quality of Glasgow Coma Scale and Systolic Blood Pressure in scientific studies involving physician-staffed emergency medical services: Systematic review
Acta Anaesthesiol Scand, 64 (7), 888-909
DOI 10.1111/aas.13596, PubMed 32270473
Template for documenting and reporting data in physician-staffed pre-hospital services: a consensus-based update
Scand J Trauma Resusc Emerg Med, 28 (1), 25
DOI 10.1186/s13049-020-0716-1, PubMed 32245496
Assignment of pre-event ASA physical status classification by pre-hospital physicians: a prospective inter-rater reliability study
BMC Anesthesiol, 20 (1), 167
DOI 10.1186/s12871-020-01083-x, PubMed 32646386
Publications 2019
The boundaries of our imagination are not restricted by limits, but by lack of knowledge
Scand J Trauma Resusc Emerg Med, 27 (1), 96
DOI 10.1186/s13049-019-0677-4, PubMed 31666111
Clinical practice guideline on prevention of rhabdomyolysis induced acute kidney injury: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine
Acta Anaesthesiol Scand, 63 (10), 1280-1281
DOI 10.1111/aas.13458, PubMed 31436309
Response to: Best practice advice on pre-hospital emergency anaesthesia & advanced airway management
Scand J Trauma Resusc Emerg Med, 27 (1), 33
DOI 10.1186/s13049-019-0613-7, PubMed 30885240
Quality measurement in physician-staffed emergency medical services: a systematic literature review
Int J Qual Health Care, 31 (1), 2-10
DOI 10.1093/intqhc/mzy106, PubMed 29767795
Clinical practice guideline on atraumatic (pencil-point) vs conventional needles for lumbar puncture: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine
Acta Anaesthesiol Scand, 63 (4), 438-439
DOI 10.1111/aas.13312, PubMed 30656651
Effect of Prehospital Red Blood Cell Transfusion on Mortality and Time of Death in Civilian Trauma Patients
Shock, 51 (3), 284-288
DOI 10.1097/SHK.0000000000001166, PubMed 29664833
Search and Rescue and Remote Medical Evacuation in a Norwegian Setting: Comparison of Two Systems
Wilderness Environ Med, 30 (2), 155-162
DOI 10.1016/j.wem.2019.02.003, PubMed 30987868
Time Course of Hoist Operations by the Search and Rescue Helicopter Service in Southeast Norway
Wilderness Environ Med, 30 (4), 351-361
DOI 10.1016/j.wem.2019.06.004, PubMed 31653552
Collecting core data in physician-staffed pre-hospital helicopter emergency medical services using a consensus-based template: international multicentre feasibility study in Finland and Norway
BMC Health Serv Res, 19 (1), 151
DOI 10.1186/s12913-019-3976-6, PubMed 30849977
Publications 2018
Seven years since defining the top five research priorities in physician-provided pre-hospital critical care - what did it lead to and where are we now?
Scand J Trauma Resusc Emerg Med, 26 (1), 101
DOI 10.1186/s13049-018-0562-6, PubMed 30458843
Response letter to Voelckel et al
Acta Anaesthesiol Scand, 63 (1), 140
DOI 10.1111/aas.13283, PubMed 30374956
Response to Burns et al
Acta Anaesthesiol Scand, 63 (1), 138
DOI 10.1111/aas.13281, PubMed 30374959
Systematic reporting to improve the emergency medical response to major incidents: a pilot study
BMC Emerg Med, 18 (1), 4
DOI 10.1186/s12873-018-0153-x, PubMed 29368642
Correction to: Systematic reporting to improve the emergency medical response to major incidents: a pilot study
BMC Emerg Med, 18 (1), 6
DOI 10.1186/s12873-018-0157-6, PubMed 29426282
Endorsement of clinical practice guidelines by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine
Acta Anaesthesiol Scand, 63 (2), 161-163
DOI 10.1111/aas.13306, PubMed 30511469
Prehospital Management of Pediatric Hanging
Pediatr Emerg Care, 34 (4), 263-266
DOI 10.1097/PEC.0000000000000860, PubMed 28850052
Physician-provided prehospital critical care, effect on patient physiology dynamics and on-scene time
Eur J Emerg Med, 25 (2), 114-119
DOI 10.1097/MEJ.0000000000000432, PubMed 27879534
Static Rope Evacuation by Helicopter Emergency Medical Services in Rescue Operations in Southeast Norway
Wilderness Environ Med, 29 (3), 315-324
DOI 10.1016/j.wem.2018.03.010, PubMed 29908723
EHAC medical working group best practice advice on the role of air rescue and pre hospital critical care at major incidents
Scand J Trauma Resusc Emerg Med, 26 (1), 65
DOI 10.1186/s13049-018-0522-1, PubMed 30111347
Publications 2017
Developing quality indicators for physician-staffed emergency medical services: a consensus process
Scand J Trauma Resusc Emerg Med, 25 (1), 14
DOI 10.1186/s13049-017-0362-4, PubMed 28202076
Helicopter emergency medical services in major incident management: A national Norwegian cross-sectional survey
PLoS One, 12 (2), e0171436
DOI 10.1371/journal.pone.0171436, PubMed 28192440
Emergency versus standard response: time efficacy of London's Air Ambulance rapid response vehicle
Emerg Med J, 34 (12), 806-809
DOI 10.1136/emermed-2017-206663, PubMed 29141907
The role of the anaesthesiologist in air ambulance medicine
Curr Opin Anaesthesiol, 30 (4), 513-517
DOI 10.1097/ACO.0000000000000480, PubMed 28509774
Erratum to: Pre-hospital management of mass casualty civilian shootings: a systematic literature review
Crit Care, 21 (1), 94
DOI 10.1186/s13054-017-1663-8, PubMed 28403866
Publications 2016
London Trauma Conference 2015 : London, UK, 8-11 December 2015
Scand J Trauma Resusc Emerg Med, 24 Suppl 1 (Suppl 1), 78
DOI 10.1186/s13049-016-0248-x, PubMed 27357386
Experience With a Novel, Global, Open-Access Template for Major Incidents: Qualitative Feasibility Study
Disaster Med Public Health Prep, 11 (4), 403-406
DOI 10.1017/dmp.2016.156, PubMed 27995839
Reporting Helicopter Emergency Medical Services in Major Incidents: A Delphi Study
Air Med J, 35 (6), 348-351
DOI 10.1016/j.amj.2016.08.003, PubMed 27894557
Field Reports: Yes, They Will Add to the Prehospital and Disaster Knowledge Base
Prehosp Disaster Med, 31 (4), 461
DOI 10.1017/S1049023X16000522, PubMed 27216765
In response to 'Top 10 lessons from the Glasgow major incidents'
Emerg Med J, 33 (9), 674
DOI 10.1136/emermed-2016-206004, PubMed 27215762
Utilisation of helicopter emergency medical services in the early medical response to major incidents: a systematic literature review
BMJ Open, 6 (2), e010307
DOI 10.1136/bmjopen-2015-010307, PubMed 26861938
Structure of Rapid Response Car Operations in an Urban Trauma Service
Air Med J, 35 (3), 143-7
DOI 10.1016/j.amj.2015.12.015, PubMed 27255876
Scandinavian SSAI clinical practice guideline on pre-hospital airway management
Acta Anaesthesiol Scand, 60 (7), 852-64
DOI 10.1111/aas.12746, PubMed 27255435
Reply from the authors: SSAI guideline on pre-hospital airway management: keep it safe and simple
Acta Anaesthesiol Scand, 61 (1), 127-128
DOI 10.1111/aas.12817, PubMed 27709608
Pre-hospital management of mass casualty civilian shootings: a systematic literature review
Crit Care, 20 (1), 362
DOI 10.1186/s13054-016-1543-7, PubMed 27825363
Publications 2015
Implementing a template for major incident reporting: experiences from the first year
Scand J Trauma Resusc Emerg Med, 23, 55
DOI 10.1186/s13049-015-0132-0, PubMed 26242290
Publications 2014
Rapid extrication of entrapped victims in motor vehicle wreckage using a Norwegian chain method - cross-sectional and feasibility study
BMC Emerg Med, 14, 14
DOI 10.1186/1471-227X-14-14, PubMed 24989364
a consensus based template for reporting of pre-hospital major incident medical management (vol 22, 5, 2014)
Scand. J. Trauma Resusc. Emerg. Med., 22, 22
DOI 10.1186/s13049-014-0042-6
A consensus based template for reporting of pre-hospital major incident medical management
Scand J Trauma Resusc Emerg Med, 22, 5
DOI 10.1186/1757-7241-22-5, PubMed 24517242
New reporting system for major incident responses
Tidsskr Nor Laegeforen, 134 (9), 920
DOI 10.4045/tidsskr.14.0431, PubMed 24828712
Quality improvement in pre-hospital critical care: increased value through research and publication
Scand J Trauma Resusc Emerg Med, 22, 34
DOI 10.1186/1757-7241-22-34, PubMed 24887186
Risks to emergency medical responders at terrorist incidents: a narrative review of the medical literature
Crit Care, 18 (5), 521
DOI 10.1186/s13054-014-0521-1, PubMed 25323086
Publications 2013
Systematic literature review of templates for reporting prehospital major incident medical management
BMJ Open, 3 (8)
DOI 10.1136/bmjopen-2013-002658, PubMed 23906946
Impact of helicopter emergency medical services in major incidents: systematic literature review
BMJ Open, 3 (8), e003335
DOI 10.1136/bmjopen-2013-003335, PubMed 23959759
Epidemiology of trauma: a population-based study of geographical risk factors for injury deaths in the working-age population of Norway
Injury, 45 (1), 23-30
DOI 10.1016/j.injury.2013.07.007, PubMed 23915491
Improving adjustments for older age in pre-hospital assessment and care
Scand J Trauma Resusc Emerg Med, 21, 4
DOI 10.1186/1757-7241-21-4, PubMed 23343340
Letter to the editor
Air Med J, 32 (1), 4-5
DOI 10.1016/j.amj.2012.11.003, PubMed 23273298
Guidelines for mass casualty triage have been established
Tidsskr Nor Laegeforen, 133 (19), 2029
DOI 10.4045/tidsskr.13.1017, PubMed 24129529
Publications 2012
Major incident preparedness and on-site work among Norwegian rescue personnel - a cross-sectional study
Int J Emerg Med, 5 (1), 40
DOI 10.1186/1865-1380-5-40, PubMed 23134634
Templates for reporting pre-hospital major incident medical management: systematic literature review
BMJ Open, 2 (3)
DOI 10.1136/bmjopen-2012-001082, PubMed 22556162
Calculating trauma triage precision: effects of different definitions of major trauma
J Trauma Manag Outcomes, 6 (1), 9
DOI 10.1186/1752-2897-6-9, PubMed 22902009
Abbreviated Injury Scale: not a reliable basis for summation of injury severity in trauma facilities?
Injury, 44 (5), 691-9
DOI 10.1016/j.injury.2012.06.032, PubMed 22831922
Oslo government district bombing and Utøya island shooting July 22, 2011: the immediate prehospital emergency medical service response
Scand J Trauma Resusc Emerg Med, 20, 3
DOI 10.1186/1757-7241-20-3, PubMed 22280935
Publications 2011
Social inequalities in road traffic deaths at age 16-20 years among all 611,654 Norwegians born between 1967 and 1976: a multilevel analysis
Inj Prev, 18 (1), 3-9
DOI 10.1136/ip.2011.031682, PubMed 21606470
Paediatric trauma mortality in Norway: a population-based study of injury characteristics and urban-rural differences
Injury, 43 (11), 1865-72
DOI 10.1016/j.injury.2011.08.011, PubMed 21939971
Revisiting the value of pre-hospital tracheal intubation: an all time systematic literature review extracting the Utstein airway core variables
Crit Care, 15 (1), R26
DOI 10.1186/cc9973, PubMed 21244667
Fair access to trauma research
Tidsskr Nor Laegeforen, 131 (7), 669
DOI 10.4045/tidsskr.11.0179, PubMed 21494297
Efficacy of a two-tiered trauma team activation protocol in a Norwegian trauma centre
Br J Surg, 99 (2), 199-208
DOI 10.1002/bjs.7794, PubMed 22190166
Prognostic models for the early care of trauma patients: a systematic review
Scand J Trauma Resusc Emerg Med, 19, 17
DOI 10.1186/1757-7241-19-17, PubMed 21418599
Major incident patient evacuation: full-scale field exercise feasibility study
Air Med J, 30 (3), 153-7
DOI 10.1016/j.amj.2011.01.005, PubMed 21549288
Publications 2010
Early prophylactic hypothermia in severe traumatic brain injury-Challenging a pre-hospital paradigm?
Injury-Int. J. Care Inj., 41 (9), 975
DOI 10.1016/j.injury.2009.09.034
Inter-hospital transfer: the crux of the trauma system, a curse for trauma registries
Scand J Trauma Resusc Emerg Med, 18, 15
DOI 10.1186/1757-7241-18-15, PubMed 20233410
A concept for major incident triage: full-scaled simulation feasibility study
BMC Emerg Med, 10, 17
DOI 10.1186/1471-227X-10-17, PubMed 20701802
[The prehospital paradox]
Tidsskr Nor Laegeforen, 130 (4), 369
DOI 10.4045/tidsskr.09.1508, PubMed 20220859
[Disaster triage--needs for a Norwegian standard]
Tidsskr Nor Laegeforen, 130 (21), 2112-3
DOI 10.4045/tidsskr.10.0883, PubMed 21052110
Publications 2009
Trauma systems and early management of severe injuries in Scandinavia: review of the current state
Injury, 41 (5), 444-52
DOI 10.1016/j.injury.2009.05.027, PubMed 19540486
Early prophylactic hypothermia in severe traumatic brain injury--challenging a pre-hospital paradigm?
Injury, 41 (9), 975
DOI 10.1016/j.injury.2009.09.034, PubMed 19879575
RE: Field triage in trauma - do the data really justify the conclusions?
Scand. J. Trauma Resusc. Emerg. Med., 17, 25
DOI 10.1186/1757-7241-17-25
Precision of field triage in patients brought to a trauma centre after introducing trauma team activation guidelines
Scand J Trauma Resusc Emerg Med, 17, 1
DOI 10.1186/1757-7241-17-1, PubMed 19134177
[New rescue helicopters--for whom?]
Tidsskr Nor Laegeforen, 129 (17), 1773
DOI 10.4045/tidsskr.09.0714, PubMed 19756063