[1] Royal Marsden Hosp NHS Trust, London, England
[2] IRCCS San Matteo Univ Hosp Fdn, Pavia, Italy
[3] Hop Europeen Georges Pompidou, Paris, France
[4] Toronto Sunnybrook Reg Canc Ctr, Toronto, ON, Canada
[5] Hosp Univ 12 Octubre, Madrid, Spain
[6] Mil Inst Med, Warsaw, Poland
[7] Mater Adult Hosp, South Brisbane, Australia
[8] Leuven Canc Inst, Leuven, Belgium
[9] Cleveland Clin Fdn, Cleveland, OH 44195 USA