[1] Leopoldina Hosp Schweinfurt, Dept Radiat Oncol, Schweinfurt, Germany
[2] Univ Zurich, Dept Radiat Oncol, Univ Hosp Zurich, Ramistr 100, CH-8091 Zurich, Switzerland
[3] Strahlentherapie Bautzen, Radiat Oncol, Bautzen, Germany
[4] Krankenhaus Barmherzige Bruder, Radiat Oncol, Regensburg, Germany
[5] RadioChirurg CyberKnife Sudwest, Radiat Oncol, Goppingen, Germany
[6] Univ Klinikum Schleswig Holstein, Radiat Oncol, Kiel, Germany
[7] Heidelberg Univ, Univ Hosp Mannheim, Radiat Oncol, Heidelberg, Germany
[8] Univ Hosp Freiburg, Radiat Oncol, Freiburg, Germany
[9] Tech Univ Munich, Klinikum Rechts Isar, Radiat Oncol, Munich, Germany
[10] Univ Munich, LMU Munich, Dept Radiat Oncol, Munich, Germany
[11] Univ Hosp Heidelberg, Radiat Oncol, Heidelberg, Germany
[12] Univ Hosp Rostock, Radiat Oncol, Rostock, Germany
[13] Univ Hosp Wurzburg, Radiat Oncol, Wurzburg, Germany
[14] Univ Hosp Halle, Radiat Oncol, Halle, Germany
[15] Univ Hosp Basel, Radiat Oncol, Basel, Switzerland
[16] Univ Med Ctr Hamburg Eppendorf, Radiat Oncol, Hamburg, Germany
[17] Strahlenzentrum Hamburg, Radiat Oncol, Hamburg, Germany
[18] Univ Hosp Cologne, Radiat Oncol, Cologne, Germany
[19] Klinikum Passau, Radiat Oncol, Passau, Germany