1. Gynecological Endocrinology and Fertility Disorders, Ruprecht-Karls University Heidelberg, Heidelberg
2. Vivantes Hospital Neukölln, Berlin
3. Department of Obstetrics and Gynecology, University Hospital, Ulm
4. Department of Obstetrics and Gynecology, Julius Maximilians University Würzburg, Würzburg
5. Medical Practice for Psychosomatic Medicine and Psychotherapy, Murnau