Complex sentence: Professor Emeritus of Public Health Sciences-Epidemiology at the University of Gävle, formerly Head of the Research group of International and Cross-cultural Injury Epidemiology at the Karolinska Institutet.
Split into simpler sentences: Professor Emeritus of Public Health Sciences-Epidemiology. He was formerly Professor at the University of Gävle and Head of the Research group of International and Cross-cultural Injury Epidemiology at the Karolinska Institutet.