Institution: | (1) Department of Dermatology, University of Trondheim, Trondheim, Norway;(2) Departments of Dermatology, Obstetrics and Gynecology, Sahlgren's Hospital, S-40033 Göteborg 33, Sweden;(3) Department of Structural Chemistry, Faculty of Medicine, University of Göteborg, S-40033 Göteborg 33, Sweden |