Published on in Vol 7, No 1 (2019): January
1 Department of Gynecology and Obstetrics, University Women's Clinic Heidelberg, Heidelberg, Germany
2 Department of Gynecology and Obstetrics, University Women's Clinic Leipzig, Leipzig, Germany
3 Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany
4 Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Heidelberg, Germany
5 Frauenarztpraxis Markus Haist & Anja Ritthaler, Pforzheim, Germany
6 Centre of Dentistry, Department of Orthodontics and Orofacial Orthopedics, University of Tuebingen, Tuebingen, Germany
*these authors contributed equally