[1] Charite, Dept Radiat Oncol, Klin Radioonkol & Strahlentherapie, Berlin, Germany
[2] Tech Univ Dresden, Fac Med, Dept Radiat Oncol, Dresden, Germany
[3] Tech Univ Dresden, Univ Hosp Carl Gustav Carus, Dresden, Germany
[4] Heidelberg & German Canc Consortium DKTK, German Canc Res Ctr DKFZ, Dresden, Germany
[5] Tech Univ Munich, Dept Radiat Oncol, Munich, Germany
[6] Helmholtz Zentrum Munchen HMGU, DRS, Inst Innovat Radiotherapy iRT, Munich, Germany
[7] Univ Hosp Zurich, Dept Radiat Oncol, Zurich, Switzerland
[8] Univ Freiburg, Dept Radiat Oncol, Med Ctr, Fac Med, Dresden, Germany
[9] German Canc Consortium DKTK, Partner Site Freiburg, Dresden, Germany
[10] Univ Hosp Heidelberg, Dept Radiat Oncol, Heidelberg, Germany
[11] German Canc Res Ctr, Heidelberg, Germany
[12] German Consortium translat Canc Res DKTK, Heidelberg, Germany
[13] Ludwig Maximilians Univ Munchen, Dept Radiat Oncol, Munich, Germany
[14] German Canc Res Ctr, Heidelberg, Germany
[15] German Canc Consortium DKTK, Partner Site Munich, Munich, Germany
[16] Innsbruck Med Univ, Dept Therapeut Radiol & Oncol, Innsbruck, Austria
[17] Univ Med Berlin, Dept Radiol, Berlin, Germany
[18] Univ Hosp Carl Gustav Carus, TU Dresden, Nucl Med Dept, Dresden, Germany
[19] Univ Bern, Bern Univ Hosp, Inselspital, Dept Radiat Oncol, Munchen, Switzerland
[20] Charite, Klin Radioonkol & Strahlentherapie, Augustenburger Pl 1, D-13353 Berlin, Germany