After surgical residency in Molde and Oslo he became research fellow in professor Morten Raeders group 1986, and defended his PhD-thesis 1988, focusing on physiology and ultrastucture in pancreatic duct cells. As consultant surgeon in Ulllevaal university Hospital Oslo from 1990, his clinical responsibility was hepatopancreaticobiliary (HPB) surgery. From 1990 he was responsible for the introduction of minimally invasive surgical techniques, and was one of the founders of the Norwegian Thoraco-laparoscopic Forum in 1993. From 1994 he was the leader of the Norwegian National Registry of Cholecystectomy (laparoscopic and open technique), and coordinated publication of outcome-data from the Scandinavian and Norwegian registries. The development of laparoscopic surgery took place in the department for same day surgery in Ullevaal hospital and at the Interventional Centre at Rikshospitalet. He was the supervisor of Bj?rn von Gohren Edwin PhD-thesis, with the title “From the Research and Development Department to the conveyer belt”, which attracted international attention, and has resulted in rapid development of minimally invasive techniques within HPB-surgery. His clinical and experimental research has been focused on immunotherapy. First as adjuvant vaccination with K-Ras peptides in patents with resectable tumors, then immune stimulation with telomerase peptides (GV1001) in patients with metastatic disease – all projects in close cooperation with professor Gustav Gaudernack at the Institute of Immunotherapy at the Norwegian Radiumhospital. He is now working in the HPB-surgical section of Oslo university Hospital at Rikshospitalet in close cooperation with the Liver transplantation team.