[1] S Maria Univ Hosp, Dept Med Oncol, Terni, Italy
[2] Odense Univ Hosp, DK-5000 Odense, Denmark
[3] Inst Multidisciplinaire Oncol, Genolier, Switzerland
[4] Hofstra Univ, Sch Med, LIJ Hlth Syst, Lake Success, NY USA
[5] Walther Canc Inst, Indianapolis, IN USA
[6] Regina Elena Inst Canc Res, Rome, Italy
[7] Lawrence Mem Hosp, Lawrence, KS USA
[8] Aarhus Univ Hosp, DK-8000 Aarhus, Denmark
[9] Vivantes Clin, Clin Radiotherapy, Berlin, Germany
[10] Univ Vermont, Burlington, VT 05405 USA
[11] Lahey Clin Fdn, Burlington, MA 01805 USA
[12] Univ Halle Wittenberg, Halle, Germany
[13] Mem Sloan Kettering Canc Ctr, New York, NY 10021 USA
[14] S Maria Hosp, Radiat Oncol Ctr, Terni, Italy
[15] Univ Manchester, Sch Nursing, Manchester, Lancs, England
[16] Univ Rochester, Ctr Canc, Rochester, NY 14627 USA
[17] Canc Council Australia, Sydney, NSW, Australia
[18] Med Oncol Ctr Rosebank, Johannesburg, South Africa
[19] Rittenberg Oncol Consulting, Metairie, LA USA
[20] Juntendo Univ Hosp, Tokyo, Japan
[21] Umbria Reg Canc Network Perugia, Perugia, Italy
[22] Univ Toronto, Princess Margaret Hosp, Toronto, ON M5S 1A1, Canada