[1] Nuffield Dept Populat Hlth, Oxford, England
[2] Univ Cambridge, Ctr Oncol, Cambridge, England
[3] Klinikum Esslingen, Esslingen, Germany
[4] St Louis Hosp, Paris, France
[5] Oxford Univ Hosp, Oxford, England
[6] Aarhus Univ Hosp, Aarhus, Denmark
[7] Inst Curie, Paris, France
[8] McMaster Univ, Hamilton, ON, Canada
[9] Juravinski Canc Ctr, Hamilton, ON, Canada