1 Department of Radiation Oncology, American University of Beirut Medical Center, Beirut, Lebanon.
2 Department of Medical Oncology, Fouad Khoury and Makassed General Hospital, Beirut, Lebanon.
3 Medical Oncology Clinic, Université Libre de Bruxelles, Brussels, Belgium.
4 Department of Surgery, Waikato Hospital, University of Auckland School of Health Sciences, Hamilton, New Zealand.
5 Department of Oncology, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark; Danish Breast Cancer Cooperative Group, Copenhagen, Denmark.
6 Department of Hematology and Medical Oncology, Hospital Clínico Universitario deValencia / INCLIVA, Universidad de Valencia, Valencia, Spain; On behalf the Grupo Español deInvestigación en Cáncer de Mama (GEICAM).
7 Sandro Pitigliani' Medical Oncology Department, Hospital of Prato, Instituto Toscano Tumori, Prato, Italy.
8 Peter MacCallum Cancer Centre, Melbourne, Australia; St Vincent's Hospital, University of Melbourne, Melbourne, Australia; Breast Cancer Trials Australia & New Zealand, University of Newcastle, Newcastle, Australia; International Breast Cancer Study Group, Bern, Switzerland.