Medical licensed, Gothenburg University, 1972. Doctor of Philosophy in Surgery, Gothenburg University, 1976.
National Institutes of Health research fellow University Illinois, Chicago, 1978-1979. Research assistant professor surgery State University of New York, 1980-1981. Lecturer in surgery Gothenburg University, 1983-1988.
Researcher Swedish Medical Research Council, Gothenburg, 1988-1994. Professor endocrine surgery Gothenburg University, since 1994.
Member Swedish Surgical Society (chairman section endocrine surgery 1995-1997), Nordic Surgical Society (secretary endocrine section 1986-1989), European Neuroendocrine Tumour Network (board directors since 1997), Gothenburg Medical Society, Swedish Medical Association, Warren Cole Society (Chicago).
Married Bodil Elisabeth Olsson, June 10, 1972. Children: Fredrik, Maria.