[1] Univ Lausanne, Med Ctr, Dept Radiat Oncol, Lausanne, Switzerland
[2] Ctr Lacassagne, Dept Radiat Oncol, Nice, France
[3] Acibadem Univ, Dept Radiat Oncol, Istanbul, Turkey
[4] Univ Hosp, Dept Radiat Oncol, Geneva, Switzerland
[5] Medstar Antalya Hosp, Dept Radiat Oncol, Antalya, Turkey
[6] Univ Piemonte Orientale, Div Radiotherapy, Novara, Italy
[7] Clin Luganese SA Profit, Radiotherapy Serv, Lugano, Switzerland
[8] Sun Yat Sen Univ, Canc Ctr, Dept Radiat Oncol, Guangzhou, Guangdong, Peoples R China
[9] Osped S Anna Como, Dept Radiotherapy, Como, Italy
[10] UPEC, Henri Mondor Univ Hosp, Dept Radiat Therapy & Breast Ctr, Creteil, France
[11] Inst Catala Oncol, Radiat Oncol, Barcelona, Catalonia, Spain
[12] Istanbul Bilim Univ, Dept Radiat Oncol, Istanbul, Turkey
[13] Ram Barn Med Ctr, Dept Radiat Oncol, Haifa, Israel
[14] Mayo Clin, Dept Radiat Oncol, 200 First St SW, Rochester, MN 55005 USA