[1] Univ Frauenklin Ulm, Ulm, Germany
[2] Klinikum Ludwig Maximilians Univ, Munich, Germany
[3] Univ Frauenklin, Erlangen, Germany
[4] Univ Frauenklin, Tubingen, Germany
[5] Univ Klinikum, Natl Ctr Tumorerkrankungen, Gynakol Onkol, Heidelberg, Germany
[6] Univ Frauenklin, Hamburg, Germany
[7] Univ Frauenklin, Essen, Germany
[8] Univ Klinikum Hamburg Eppendorf, Dept Tumor Biol, Hamburg, Germany
[9] Univ Frauenklin, Dusseldorf, Germany
[10] Tech Univ Dresden, Univ Frauenklin, D-01062 Dresden, Germany
[11] Kliniken Essen Mitte, Interdisziplinares Brustzentrum, Essen, Germany
[12] Marien Hosp, Frauenklin, Hamburg, Germany