Rognstad S, Søraas CL, Bergland OU, Høieggen A, Strømmen M, Helland A, Opdal MS (2021)
Establishing Serum Reference Ranges for Antihypertensive Drugs
Ther Drug Monit, 43 (1), 116-125
DOI 10.1097/FTD.0000000000000806, PubMed 32881780

Müller LD, Opdal MS (2018)
Developing a rapid semi-automated sample preparation with alkaline hydrolysis in a 96-well plate for quantification of 11-nor-Δ9-tetrahydrocannabinol-9-carboxylic acid in urine samples by UHPLC-MS/MS
J Pharm Biomed Anal, 161, 296-304
DOI 10.1016/j.jpba.2018.08.045, PubMed 30189411

Haga C, Opdal MS, Tuv SS, Zahl PH, Stenberg-Nilsen H (2016)
[Drug safety associated with the change of digitalis drug in Norway]
Tidsskr Nor Laegeforen, 136 (20), 1714-1718
DOI 10.4045/tidsskr.15.0161, PubMed 27830905