aFormer Chairman of the Department of Medical Oncology, Inselspital and University of Bern, Bern, Switzerland

bConsultant Medical Oncologist, University College Cork, Cork, Ireland

cMedical Oncologist, Institut Jules Bordet, Université Libre de Bruxelles, Bruxelles, Belgium

dCRAB Cancer Research and Biostatistics, Seattle, Washington, USA

eUniversity of British Columbia Faculty of Medicine, 2775 Laurel Street, Vancouver, British Columbia, Canada

Correspondence to Prof. Martin F. Fey, MD, University of Bern, Switzerland, Fischerstr 13, CH-3052 Zollikofen, Switzerland. Tel: +41 79 542 26 64; e-mail: mail [email protected]