Thrasyvoulos Tzellos is Dermatologist working at Department of Dermatology, NLSH Bodø, Norway and Associate Professor at Institute of Clinical Medicine, University of Tromsø, Norway.
Dr Tzellos received his medical degree from the Aristotle University of Thessaloniki, Greece (2004), moving on to a MSc in Clinical Research and Epidemiology (2007) and PhD from the same institution. He has also received several postgraduate courses on educational techniques, epidemiology and clinical pharmacology in healthcare.

Dr Tzellos has received numerous scholarships and awards, including the LINK-AGE Scholarship, the American Academy of Dermatology Resident’s Scholarship, the John Stratigos Memorial EADV Scholarship, the Euroderm Excellence Scholarship and the Scholarship Alumni club-EADV Lecturer of the Year Award. He has worked as a research associate in the Department of Pharmacology, School of Medicine, Aristotle University of Thessaloniki, Greece; the laboratories of Biogerontology, Dermato-Endocrinology and Dermato-Pharmacology, Charite University, Berlin; and the Commission of the European Communities Research Directorate-General-supported program ‘D10-Quality control and monitoring report (WP2)-Preclinical Drug evaluation’.

Dr Tzellos has published over 80 peer-reviewed articles and his current research expertise lies in the field of evidence-based medicine, meta-analyses, case-control studies, cohort studies and large-scale epidemiological studies. He is actively involved in clinical research on HS and is a founding member of the EHSF (European Hidradenitis Suppurativa Foundation).