[1] Univ Manchester, Christie NHS Fdn Trust, Fac Biol Med & Hlth, Div Canc Sci, Manchester, Lancs, England
[2] German Canc Res Ctr, Neuenheimer Feld 280, D-69120 Heidelberg, Germany
[3] Univ Groningen, Univ Med Ctr Groningen, Sect Mol Cell Biol, Dept Radiat Oncol, Groningen, Netherlands
[4] Univ Groningen, Univ Med Ctr Groningen, Sect Mol Cell Biol, Dept Biomed Sci Cells & Syst, Groningen, Netherlands
[5] Inst Oncol Thorac IOT, Dept Radiat Oncol, Gustave Roussy, France
[6] Med Univ Vienna, Dept Radiat Oncol, Div Med Radiat Phys, AKH Wien, Vienna, Austria
[7] Univ Hosp Leuven, Dept Radiat Oncol, Leuven, Belgium
[8] Mt Vernon Canc Ctr, Manchester, Lancs, England
[9] Univ Manchester, Manchester, Lancs, England
[10] Tech Univ Dresden, Fac Med, Dept Radiotherapy & Radiat Oncol, Dresden, Germany
[11] Tech Univ Dresden, Univ Hosp Carl Gustav Carus, Dresden, Germany
[12] Oscar Lambret Comprehens Canc Ctr, Acad Dept Radiotherapy, Lille, France
[13] Tech Univ Dresden, Helmholtz Zentrum Dresden Rossendorf, Fac Med, OncoRay Natl Ctr Radiat Res Oncol, Dresden, Germany
[14] Tech Univ Dresden, Helmholtz Zentrum Dresden Rossendorf, Univ Hosp Carl Gustav Carus, Dresden, Germany
[15] Aarhus Univ Hosp, Dept Expt Clin Oncol, Aarhus, Denmark
[16] Univ Sydney, Inst Med Phys, Sch Phys, Sydney, NSW, Australia
[17] Univ Wisconsin, Sch Med & Publ Hlth, Dept Human Oncol, Madison, WI USA
[18] Netherlands Canc Inst, Dept Radiat Oncol, Amsterdam, Netherlands
[19] Fdn Policlin Univ A Gemelli IRCCS, UOC Radioterapia Oncol, Dipartimento Diagnost Immagini Radioterapia Oncol, Rome, Italy