[1] Goethe Univ Frankfurt, Dept Med Hematol & Oncol 2, Frankfurt, Germany
[2] Gynecol Oncol Practice, Hannover, Germany
[3] Oncol Practice Neumarkt, Hannover, Germany
[4] MediOnko Inst GbR, Berlin, Germany
[5] Johannes Gutenberg Univ Mainz, Dept Obstet & Gynecol, Univ Med Ctr, Mainz, Germany
[6] Univ Hosp & German Canc Res Ctr, Natl Ctr Tumor Dis, Heidelberg, Germany
[7] Univ Clin Tuebingen, Dept Gynecol & Obstet, Tubingen, Germany
[8] Cty Hosp Boblingen, Boblingen, Germany
[9] Oncol Practice Network, Troisdorf, Germany
[10] HELIOS Klinikum Berlin Buch, Dept Gynaecol & Obstet, Breast Canc & Gynecol Oncol Ctr, Berlin, Germany
[11] Univ Hosp Mannheim, Dept Gynaecol & Obstet, Mannheim, Germany
[12] Breast Ctr Charite Univ Med Berlin, Berlin, Germany
[13] Sana Clin Offenbach, Offenbach, Germany
[14] Univ Ulm, Dept Gynecol, Ulm, Germany
[15] Univ Hosp, Aachen, Germany
[16] Kliniken Essen Mitte, Interdisciplinary Breast Unit, Essen, Germany
[17] Tech Univ Dresden, Med Fac, Dept Gynecol & Obstet, Dresden, Germany
[18] Tech Univ Dresden, Univ Hosp Carl Gustav Carus, Dresden, Germany
[19] Charite Univ Med Berlin, Inst Pathol, Berlin, Germany
[20] Univ Hosp, Dept Gynecol & Obstet, Ulm, Germany
[21] Inst Pathol Philipps Univ Marburg, Marburg, Germany
[22] German Breast Grp, Neu Isenburg, Germany
[23] Ctr Pathol Cytol & Mol Pathol Neuss, Neuss, Germany
[24] Goethe Univ Frankfurt, Breast Ctr, Frankfurt, Germany
[25] Elisabeth Hosp Kassel, Breast Canc Ctr, Kassel, Germany