[1] University Hospital Augsburg,Department of Obstetrics and Gynecology
[2] University of Augsburg,Environmental Medicine, Faculty of Medicine
[3] University of Augsburg,Department of Data Management and Clinical Decision Support, Faculty of Medicine
[4] University of Augsburg,Human Genetics, Faculty of Medicine
[5] University Hospital Schleswig-Holstein,Department of Obstetrics and Gynecology
[6] Helios Klinikum Berlin-Buch,Department of Obstetrics and Gynecology
[7] Die Filderklinik,Department of Obstetrics and Gynecology