Affiliation: | (1) Department of Obstetrics and Gynaecology, University of Luebeck, Ratzeburger Allee 160, 23538 Luebeck, Germany;(2) Department of Urology, Roepersberg Clinic, Roepersberg 47, 23909 Ratzeburg, Germany;(3) Department of Obstetrics and Gynaecology, Clinic Kempten-Oberallgaeu, Robert-Weixler-Str. 50, 87439 Kempten/Allgaeu, Germany;(4) Department of Obstetrics and Gynaecology, Christian-Albrechechts-University, Michaelisstr. 16, 24105 Kiel, Germany |