[1] ICO Site Paul Papin, Dept Med Oncol, Angers, France
[2] ICO, Biometr Unit, St Herblain, France
[3] Ctr Hosp Mans, Dept Resp Dis, Le Mans, France
[4] Ctr Hosp Cholet, Pneumol, Cholet, France
[5] Ctr Paul Papin, Dept Med Oncol, Angers, France
[6] ICO Inst Cancerol Ouest Site Paul Papin, Dept Med Oncol, Angers, France