2025

• Åsberg, Arne; Lian, Ingrid Alsos; Mikkelsen, Gustav; Skadberg, Øyvind. (2025) Testing MMA<inf>100</inf>–the eGFR-adjusted concentration of methylmalonic acid in plasma. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel
• Mikkelsen, Gustav; Thorstensen, Ketil; Lian, Ingrid Alsos; Løfblad, Lena; Hov, Gunhild Garmo; Åsberg, Arne. (2025) Sample stability of forty-two analytes in plasma or serum pools after one to four repeated −80 °C freeze-thaw cycles. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel
• Åsberg, Arne; Mikkelsen, Gustav. (2025) Use of Reference Change Values When only 2 Analytical Results Are Known. The Journal of Applied Laboratory Medicine (JALM)
  Leserinnlegg
• Åsberg, Arne; Berg, Marius; Hov, Gunhild Garmo; Lian, Ingrid Alsos; Løfblad, Lena; Mikkelsen, Gustav. (2025) The HUNT study: long-term within-subject variation of thyroid stimulating hormone (TSH). Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel
• Åsberg, Arne; Mikkelsen, Gustav; Løfblad, Lena. (2025) CgA<inf>100</inf> - eGFR-adjusted serum chromogranin A. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel
• Tjernvoll, Elisabet; Åsberg, Arne; Lian, Ingrid Alsos; Løfblad, Lena; Hov, Gunhild Garmo; Thorstensen, Ketil. (2025) Stability of 17 endocrine analytes in serum or plasma after four cycles of repeated freezing and thawing. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel
• Åsberg, Arne; Mikkelsen, Gustav; Lian, Ingrid Alsos. (2025) Three new tools to diagnose B12 deficiency: eGFR-adjusted methylmalonic acid (MMA<inf>100</inf>), a bivariate reference area for MMA<inf>100</inf> and cobalamin, and a cobalamin deficiency index. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel
• Åsberg, Arne; Lian, Ingrid Alsos; Løfblad, Lena; Mikkelsen, Gustav. (2025) Personalized risk assessment of advanced liver fibrosis in patients with MASLD. Journal of Hepatology
  Leserinnlegg

2024

• Åsberg, Arne; Mikkelsen, Gustav. (2024) A bivariate reference interval for TSH and free thyroxine. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel
• Haugen, Tina; Halvorsen, Joar Øveraas; Friborg, Oddgeir; Mork, Paul Jarle; Mikkelsen, Gustav; Schei, Berit. (2024) Early Intervention after Rape to prevent post-traumatic stress symptoms (the EIR-study): an internal pilot study of a randomized controlled trial. Pilot and Feasibility Studies
  Vitenskapelig artikkel

2023

• Åsberg, Arne; Løfblad, Lena; Hov, Gunhild Garmo; Mikkelsen, Gustav. (2023) Reference change values of FIB-4. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel
• Åsberg, Arne; Mikkelsen, Gustav. (2023) Interpreting two TSH results from the same patient. Clinical Chemistry and Laboratory Medicine
  Vitenskapelig artikkel
• Nguyen, Daniel Khai; Ellingsen, Øyvind; Grenne, Bjørnar Leangen; Fremo, Thomas; Hov, Gunhild Garmo; Røsbjørgen, Ragnhild. (2023) Treadmill running intensity and post-exercise increase in plasma cardiac troponin I and T—A pilot study in healthy volunteers. Scandinavian Journal of Medicine & Science in Sports
  Vitenskapelig artikkel
• Haugen, Tina; Halvorsen, Joar Øveraas; Friborg, Oddgeir; Simpson, Melanie Rae; Mork, Paul Jarle; Mikkelsen, Gustav. (2023) Modified prolonged exposure therapy as Early Intervention after Rape (The EIR-study): study protocol for a multicenter randomized add-on superiority trial. Trials
  Vitenskapelig artikkel
• Haugen, Tina; Halvorsen, Joar Øveraas; Friborg, Oddgeir; Simpson, Melanie Rae; Mork, Paul Jarle; Mikkelsen, Gustav. (2023) Erratum: Correction: Modified prolonged exposure therapy as Early Intervention after Rape (The EIR-study): study protocol for a multicenter randomized add-on superiority trial (Trials (2023) 24 1 (126)). Trials
  Errata

2022

• Åsberg, Arne; Lian, Ingrid Alsos; Mikkelsen, Gustav. (2022) Thyroid stimulating hormone: biased estimate of allowable bias. Clinical Chemistry and Laboratory Medicine
  Leserinnlegg

2021

• Mikkelsen, Gustav; Lillebo, Børge; Faxvaag, Arild. (2021) Disease-associated reference intervals for twenty laboratory tests in patients with rheumatoid arthritis, Crohn's disease or ulcerative colitis. Practical Laboratory Medicine
  Vitenskapelig artikkel
• Åsberg, Arne; Lian, Ingrid Alsos; Odsæter, Ingrid Hov; Mikkelsen, Gustav. (2021) Testing the limits: the diagnostic accuracy of reference change values. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel

2020

• Odsæter, Ingrid Hov; Grenne, Bjørnar; Hov, Gunhild Garmo; Laugsand, Lars Erik; Wiseth, Rune; Mikkelsen, Gustav. (2020) Establishing the 99th percentile of a novel assay for high-sensitivity troponin I in a healthy blood donor population. Clinical Chemistry and Laboratory Medicine
  Vitenskapelig artikkel

2019

• Panton, Kristine Kollerøs; Mikkelsen, Gustav; Irgens, Wenche Elna Øiestad; Hovde, Ann Kristin; Killingmo, Marte Wien; Øien, Monja Airin. (2019) New reference intervals for cortisol, cortisol binding globulin and free cortisol index in women using ethinyl estradiol. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel
• Åsberg, Arne; Mikkelsen, Gustav; Odsæter, Ingrid Hov. (2019) A new index of clinical utility for diagnostic tests. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel

2018

• Mikkelsen, Gustav; Åsberg, Arne; Hov, Gunhild Garmo. (2018) Are age-specific reference ranges for CYFRA 21-1 appropriate?. Scandinavian Journal of Clinical and Laboratory Investigation
  Leserinnlegg
• Mikkelsen, Gustav. (2018) Bestill alltid s-kreatinin når du rekvirerer kromogranin A eller CYFRA 21-1 i serum. Bestpractice Onkologi/Hematologi
  Vitenskapelig artikkel

2017

• Mikkelsen, Gustav; Åsberg, Arne; Hultström, Maria Elisabeth; Aasarød, Knut; Hov, Gunhild Garmo. (2017) Reference limits for chromogranin A, CYFRA 21-1, CA 125, CA 19-9 and carcinoembryonic antigen in patients with chronic kidney disease. International Journal of Biological Markers (IJBM)
  Vitenskapelig artikkel
• Trondsetås, Lene; Mikkelsen, Gustav; Lian, Ingrid Alsos. (2017) The effects of dry ice exposure on plasma pH and coagulation analyses. Clinical Chemistry and Laboratory Medicine
  Vitenskapelig artikkel

2016

• Åsberg, Arne; Odsæter, Ingrid Hov; Mikkelsen, Gustav; Hov, Gunhild Garmo. (2016) Using the hazard ratio to evaluate allowable total error in predictive measurands. Clinical Chemistry and Laboratory Medicine
  Vitenskapelig artikkel
• Åsberg, Arne; Johnsen, Harald; Mikkelsen, Gustav; Hov, Gunhild Garmo. (2016) Using probit regression to disclose the analytical performance of qualitative and semi-quantitative tests. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel

2015

• Åsberg, Arne; Borch-Iohnsen, Berit; Mikkelsen, Gustav; Thorstensen, Ketil; Åsberg, Ann Elisabeth. (2015) Lower hemoglobin with lower ferritin - Results from the HUNT 2 Study. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel
• Åsberg, Arne; Solem, Kristine Bodal; Mikkelsen, Gustav. (2015) Validating precision-how many measurements do we need?. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel
• Åsberg, Arne; Solem, Kristine Bodal; Mikkelsen, Gustav. (2015) Allowable systematic difference between two instruments measuring the same analyte. Scandinavian Journal of Clinical and Laboratory Investigation
  Leserinnlegg
• Odsæter, Ingrid Hov; Lian, Ingrid Alsos; Bratberg, Kari; Mikkelsen, Gustav. (2015) Dry ice exposure of plasma samples influences pH and lupus anticoagulant analysis. Clinical Chemistry and Laboratory Medicine
  Vitenskapelig artikkel
• Åsberg, Arne; Odsæter, Ingrid Hov; Carlsen, Sven Magnus; Mikkelsen, Gustav. (2015) Using the likelihood ratio to evaluate allowable total error - An example with glycated hemoglobin (HbA1c). Clinical Chemistry and Laboratory Medicine
  Vitenskapelig artikkel

2014

• Åsberg, Arne; Mikkelsen, Gustav; Thorstensen, Ketil; Åsberg, Ann Elisabeth. (2014) Clarification of patient selection for two studies of iron deficiency. Scandinavian Journal of Clinical and Laboratory Investigation
  Leserinnlegg
• Åsberg, Arne; Solem, Kristine Bodal; Mikkelsen, Gustav. (2014) Determining sample size when assessing mean equivalence. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel
• Åsberg, Arne; Solem, Kristine Bodal; Mikkelsen, Gustav. (2014) Allowable systematic difference between two instruments measuring the same analyte. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel

2013

• Åsberg, Arne; Mikkelsen, Gustav; Thorstensen, Ketil; Åsberg, Ann Elisabeth. (2013) Lower hemoglobin with lower ferritin: It is not just a question of anemia. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel
• Torsvik, Torbjørn; Lillebo, Børge; Mikkelsen, Gustav. (2013) Presentation of clinical laboratory results: an experimental comparison of four visualization techniques. JAMIA Journal of the American Medical Informatics Association
  Vitenskapelig artikkel
• Åsberg, Ann Elisabeth; Mikkelsen, Gustav; Aune, Marthe Wedø; Åsberg, Arne. (2013) Empty iron stores in children and young adults - the diagnostic accuracy of MCV, MCH, and MCHC. International Journal of Laboratory Hematology (IJLH)
  Vitenskapelig artikkel
• Åsberg, Arne; Thorstensen, Ketil; Mikkelsen, Gustav; Åsberg, Ann Elisabeth. (2013) The diagnostic accuracy of unbound iron binding capacity (UIBC) as a test for empty iron stores. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel

2012

• Hoffmann-Lücke, E.; Arendt, Johan F.B.; Nissen, Peter H.; Mikkelsen, Gustav; Aasly, Jan; Nexo, E.. (2012) Three family members with elevated plasma cobalamin, transcobalamin and soluble transcobalamin receptor (sCD320). Clinical Chemistry and Laboratory Medicine
  Vitenskapelig artikkel

2010

• Åsberg, Arne; Bolann, Bjørn Johan; Mikkelsen, Gustav. (2010) Using the confidence interval of the mean to detect systematic errors in one analytical run. Scandinavian Journal of Clinical and Laboratory Investigation
  Vitenskapelig artikkel

2005

• Mikkelsen, Gustav; Aasly, J. (2005) Consequences of impaired data quality on information retrieval in electronic patient records. International Journal of Medical Informatics
  Vitenskapelig artikkel

2004

• Mikkelsen, G.. (2004) Accessibility of information in electronic patient records; an evaluation of the NTNU. NTNU NTNU
  Doktorgradsavhandling

2003

• Mikkelsen, Gustav; Aasly, Jan. (2003) Narrative electronic patioent records as source of discharge diagnoses. Computer Methods and Programs in Biomedicine
  Vitenskapelig artikkel

2002

• Mikkelsen, Gustav; Aasly, Jan. (2002) Manual semantic tagging to improve access to information in narrative electronic medical records. International Journal of Medical Informatics
  Vitenskapelig artikkel