[1] Heidelberg Univ, Dept Obstet & Gynecol, Neuenheimer Feld 440, D-69120 Heidelberg, Germany
[2] Univ Childrens Hosp, Dept Gen Pediat, Heidelberg, Germany
[3] Ludwig Maximilians Univ Munchen, Dept Psychol, Munich, Germany
[4] Univ Hosp Tuebingen, Dept Psychosomat Med & Psychotherapy, Tubingen, Germany
[5] Univ Hosp Tuebingen, Res Inst Womens Hlth, Dept Womens Hlth, Tubingen, Germany
[6] Univ Hosp Tuebingen, Dept Womens Hlth, Tubingen, Germany