Institution: | 1.Department of Obstetrics and Gynecology, Nyk?ping Hospital, Nyk?ping, Sweden ;2.Department of Reproductive Medicine, Division of Gynecology and Reproduction, Karolinska University Hospital, 141 86, Stockholm, Sweden ;3.Department of Obstetrics and Gynecology, Sahlgrenska University Hospital, Gothenburg, Sweden ;4.Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden ;5.Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden ;6.Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden ; |