[1] Gustave Roussy, Radiotherapy, Villejuif, France
[2] Tenon Hosp, Radiotherapy, Paris, France
[3] Curie Inst Hosp, Radiotherapy, Paris, France
[4] Curie St Cloud Hosp, Radiotherapy, St Cloud, France
[5] Gustave Roussy, Ctr Res Epidemiol & Populat Hlth, Villejuif, France
[6] UNICANCER, Data Dept, Le Kremlin Bicetre, France
[7] Avicenne Hosp, Pulmonol, Bobigny, France