[1] Hannover Med Sch, Dept Gynecol, Hannover, Germany
[2] Stanford Univ, Dept Epidemiol & Populat Hlth, Stanford, CA USA
[3] IZD Arztliche Partnerschaft Bohmer & Partner, Hannover, Germany
[4] Martin Luther Univ Halle Wittenberg, Dept Gynaecol, Halle, Saale, Germany
[5] Univ Hosp Carl Gustav Carus Dresden, Dept Gynaecol, Dresden, Germany
[6] Tech Univ Munich, Dept Gynaecol, Munich, Germany
[7] Martin Luther Hosp, Berlin, Germany
[8] Friedrich Alexander Univ Erlangen Nuremberg, Dept Gynecol & Obstet, Dept Law Juridicum, Erlangen, Germany
[9] Friedrich Schiller Univ Jena, Dept Gynecol, Jena, Germany
[10] MARE Klinikum, Dept Gynecol & Obstet, Dysplasia Unit, Kronshagen, Germany
[11] Hosp City Wolfsburg, Wolfsburg, Germany
[12] Univ Calif San Francisco, Dept Neurol Surg, San Francisco, CA USA