1. From the J.W. Goethe-University, Frankfurt am Main; St. Gertrauden, Berlin; Krankenhuas vom Roten Kreuz, Frauenklinik; Ludwig-Maximillians University, Institute of Pathology; Ludwig-Maximillian University, München; University Hospital, Kiel; Tumorzentrum, Essen; Allgemeines Krankenhaus Hagen, Hagen; German Breast Group, Neu-Isenburg/Frankfurt am Main, Germany; European School of Oncology; Istituto Nazionale Tumori; Milano, Italy; Institute Curie, Paris, France; Mount Vernon Hospital, Northwood,...