[1] Med Univ Innsbruck, Univ Hosp Psychiat 2, Innsbruck, Austria
[2] Univ Libre Bruxelles, Hop Univ Bruxelles HUB, Head & Neck Unit, Inst Jules Bordet,Dept Radiat Oncol, Brussels, Belgium
[3] Univ Ghent, Dept Human Struct & Repair, Ghent, Belgium
[4] Netherlands Canc Inst Antoni van Leeuwenhoek, Amsterdam, Netherlands
[5] Peter MacCallum Canc Ctr, Dept Hlth Serv Res, Melbourne, Australia
[6] Peter MacCallum Canc Ctr, Melbourne, Australia
[7] Queen Mary Univ London, Ctr Canc Screening Prevent & Early Diag, London, England
[8] Med Univ Innsbruck, Dept Otorhinolaryngol Head & Neck Surg, Innsbruck, Austria
[9] Univ Med Ctr Mainz, Inst Med Biostat Epidemiol & Informat, Mainz, Germany
[10] Univ Maribor, Fac Hlth Sci, Maribor, Slovenia
[11] Univ Hosp Rijeka, Rijeka, Croatia
[12] Fdn IRCCS Ist Nazl Tumori, Head & Neck Med Oncol Unit, Milan, Italy
[13] 12 Octubre Univ Hosp, Madrid, Spain
[14] Univ Libre Brussels, Brussels, Belgium
[15] Univ Med Ctr Mannheim, Mannheim, Germany
[16] Karolinska Univ Hosp, Theme Canc, Stockholm, Sweden
[17] Karolinska Inst, Comprehens Canc Ctr, Stockholm, Sweden
[18] Karolinska Inst, Dept Oncol Pathol, Stockholm, Sweden
[19] Katholieke Univ Leuven, Translat Cell & Tissue Res, Leuven, Belgium
[20] UZ Leuven, Dept Pathol, Leuven, Belgium
[21] Cantonal Hosp Aarau, Dept Radiat Oncol, Aarau, Aargau, Switzerland
[22] Univ Bern, Bern Univ Hosp, Dept Radiat Oncol, Inselspital, Bern, Switzerland
[23] Univ & City Hlth & Sci Hosp, Dept Neurosci Rita Levi Montalcini, Turin, Italy
[24] City Hlth & Sci Hosp, Turin, Italy
[25] UCM, Hosp Clin San Carlos, Sch Med, Dept Med Oncol,IdissC, Madrid, Spain
[26] Hosp CUF Tejo, Med Oncol Dept, Lisbon, Portugal
[27] Hosp S Francisco Xavier, Dept Pediat Surg, P-1495 Lisbon, Portugal
[28] CHU Helora, La Louviere, Belgium
[29] Inst Portugues Oncol Francisco Gentil, Lisbon, Portugal
[30] Univ Hosp Zurich USZ, Dept Hematol Oncol, Zurich, Switzerland
[31] Humanitas Univ, Dept Biomed Sci, Milan, Italy
[32] Sarah Cannon Res Inst UK, Drug Dev Unit, London, England
[33] Univ Lausanne, Dept Oncol, Lausanne, Switzerland
[34] Lausanne Univ Hosp, Lausanne, Switzerland