Photo of Gudjon Elvar Theodorsson

Gudjon Elvar Theodorsson

Professor Emeritus

Studies the neuroendocrinology of regulatory peptides and steroid hormones and is engaged in metrology.


I did my medical training in Iceland and Norway, graduate education at the Karolinska Institute and specialist training in Clinical Chemistry at Karolinska Hospital in Stockholm, Sweden.

Appointed professor of Neurochemistry at Linköping University in 1995, I currently has h-index of 64 (ISI).

Consultant work in general clinical chemistry, endocrinology, haematology and quality management and head of Laboratory medicine at Region Östergötland 1996-2001.

I have served as president of the section and of the board of U.E.M.S. Medical Biopathology and as chair of the Scientific committee of the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM).

I am a member of the JCTLM Working Group on Traceability, Education and Promotion (WG-TEP) and a Swedish national representative to Eurachem.


Latest publications


Tomas Jonsson, Tie-Qiang Li, Saly Abdelhadi, Louise Lonndahl, Elvar Theodorsson, Klas Nordlind (2024) Atopic dermatitis and stress: A functional magnetic resonance imaging study of female patients with atopic dermatitis using an arithmetic task JEADV CLINICAL PRACTICE, Vol. 3, p. 580-590 Continue to DOI
Tony Badrick, Elvar Theodorsson (2024) Six Sigma - is it time to re-evaluate its value in laboratory medicine? Clinical Chemistry and Laboratory Medicine Continue to DOI
Elvar Theodorsson, Piet Meijer, Tony Badrick (2024) External quality assurance in the era of standardization Clinica Chimica Acta, Vol. 557, Article 117876 Continue to DOI
Joe M. El-Khoury, Tony Badrick, Elvar Theodorsson (2024) Time to Reevaluate the 95% Inclusion Criteria for Defining Reference Intervals? Clinical Chemistry Continue to DOI
Tze Ping Loh, Brian R Cooke, Thi Chi Mai Tran, Corey Markus, Rosita Zakaria, Chung Shun Ho, Elvar Theodorsson, Ronda F Greaves (2024) The LEAP checklist for laboratory evaluation and analytical performance characteristics reporting of clinical measurement procedures Annals of Clinical Biochemistry, Vol. 61, p. 3-7 Continue to DOI