Published on in Vol 7 , No 1 (2019) :January

1 Department of Gynecology and Obstetrics, University Women's Clinic Heidelberg, Heidelberg, DE
2 Department of Gynecology and Obstetrics, University Women's Clinic Leipzig, Leipzig, DE
3 Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, DE
4 Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Heidelberg, DE
5 Frauenarztpraxis Markus Haist & Anja Ritthaler, Pforzheim, DE
6 Centre of Dentistry, Department of Orthodontics and Orofacial Orthopedics, University of Tuebingen, Tuebingen, DE
*these authors contributed equally