1. Hôpital Tenon; Service ORL-CCF; 4 rue de la Chine Paris France 75020
2. Institut Gustave Roussy; Département de Radiothérapie; 39 rue Camille Desmoulins Villejuif Cedex France 94805
3. Institut Gustave Roussy; Biostatistics and Epidemiology Department; 39, rue Camille Desmoulins Villejuif Cedex France 94805
4. Aarhus University Hospital; Department of Experimental Clinical Oncology; Norrebrogade 44 Bldg 5 Aarhus Denmark C DK-8000
5. MD Anderson Cancer Center; Radiation Oncology Department; 1515 Holcombe Blvd Box 97 Houston Texas USA 77030
6. Marie Curie Research Wing for Oncology; Radiation Oncology Department; Mount Vernon Centre for Cancer Treatment Rickmansworth Road Northwood Middlesex UK HA6 2RN
7. Clinique de Genolia; Service de Radio-Oncologie; Genolier Switzerland CH-1272
8. Clinique de Genolia; Service de Radio-Oncologie; Genolia Switzerland CH-1272
9. RTOG; Statistical Headquarters; 1818 Market Street, Suite 1600 Philadelphia PA USA 19103
10. Mater Queensland Radium Institute; Raymond Terrace, South Brisbane Brisbane Australia 4101
11. Princess Margaret Hospital; Radiation Oncology Department; 610 University Avenue Toronto ON Canada M5G 2M9
12. Northern Centre for Cancer Treatment; Newcastle General Hospital; Westgate road Newcastle upon Tyne UK NE4 6BE
13. (Deceased) Center for Oncology - M.SKL Curie; Warsaw Poland
14. Centrum Onkologii-Inst. M. Curie; Radiotherapy Clinic; Wybrzeze Armii Krajowej 15 Gliwice Poland 44-101
15. Vancouver Cancer Center; Department of Radiation Oncology; 600 W, 10th Avenue Vancouver BC Canada V5Z 4E6
16. Instituto Nacional de Cancer; Departamento de Radioterapia; Rio de Janeiro Brazil 20230
17. University of California San Francisco; 555 Laurel Ave Apt 508 San Mateo CA USA 94401-4153
18. Instituto Nazionale dei Tumori; Dipartimento di Radiotherapia; Via Venezian 1 Milano Italy 20133
19. European Organisation for Research and Treatment of Cancer; Data Center; Avenue E Mounier 83 - Bte 11 Brussels Belgium 1200
20. Gustave Roussy Cancer Campus; Plateforme LNCC de Méta-analyse en Oncologie et Service de Biostatistique et d’Epidémiologie; Villejuif France