Brännström Mats
Department of Obstetrics and Gynecology, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden.
Acta Obstet Gynecol Scand. 2015 Jul;94(7):675-679. doi: 10.1111/aogs.12661. Epub 2015 May 10.