[1] Univ Hosp Heidelberg, Dept Gen Practice & Hlth Serv Res, Heidelberg, Germany
[2] Univ Womens Hosp Heidelberg, Dept Gynecol Endocrinol & Reprod Med Naturopathy, Heidelberg, Germany
[3] Univ Hosp Heidelberg, Natl Ctr Tumor Dis, Div Gynecol Oncol, Heidelberg, Germany
[4] Community Hosp Karlsruhe, Womens Clin, Karlsruhe, Germany
[5] Univ Hosp Tuebingen, Inst Gen Practice & Interprofess Care, Tubingen, Germany