He earned his PhD in Psychiatry at the Karolinska Institutet and was thereafter Research Fellow and Lecturer in Social Medicine at Harvard Medical School, from where he published research discoveries judged "pioneer contribution to epidemiological research" ("Academic awards", below).
He earned his PhD in Psychiatry at the Karolinska Institutet and was thereafter Research Fellow and Lecturer in Social Medicine at Harvard Medical School. During his stay at Harvard he published most of the research discoveries below, judged "pioneer contribution to epidemiological research" ("Academic awards", below).