Corresponding Author: Marc Baumann, MD

Department of Obstetrics and Gynecology, University Hospital of Bern, Effingerstrasse 102, Inselspital, 3010 Bern (Switzerland)
Tel. +41 (0)31 632 10 10, Fax +41 (0)31 632 12 27, E-Mail marc.baumann@insel.ch