[1] Univ Manchester, Fac Biol Med & Hlth, Sch Biol Sci, Manchester Acad Hlth Sci Ctr MAHSC,Div Canc Sci,Sc, Manchester, England
[2] Univ Manchester, Manchester Acad Hlth Sci Ctr MAHSC, Manchester Canc Res Ctr, Manchester, England
[3] Christie Hosp NHS Fdn Trust, Dept Clin Oncol, Manchester, England
[4] Vrije Univ Amsterdam, Canc Ctr Amsterdam CCA, Amsterdam UMC, Dept Neurosurg, De Boelelaan 1117, Amsterdam, Netherlands
[5] Antoni van Leeuwenhoek Hosp, Canc Inst, Dept Radiat Oncol, Plesmanlaan 121, NL-1066 CX Amsterdam, Netherlands