[1] Gustave Roussy, Radiotherapy, Villejuif, France
[2] Univ Manchester, Div Canc Sci, Manchester, Lancs, England
[3] Ctr Leon Berard, Lyon, France
[4] Princess Margaret Canc Ctr, Radiat Oncol, Toronto, ON, Canada
[5] Francois Baclesse Canc Ctr, Caen, France
[6] Hop La Timone, AP HM, Marseille, France
[7] Manchester Univ NHS Fdn Trust, Wythenshawe Hosp, Manchester, Lancs, England
[8] Univ Manchester, Div Mol & Clin Canc Sci, Manchester, Lancs, England