Institution: | (1) Department of Obstetrics and Gynaecology, Ludwig Maximilians University of Munich, Maistrasse 11, 80337 Munich, Germany;(2) Department of Obstetrics and Gynaecology, University of Rostock, Doberaner Strasse 142, 18055 Rostock, Germany;(3) Institute of Medical Biochemistry and Molecular Biology, University of Rostock, Schillingallee 70, 18057 Rostock, Germany |