[1] Univ Hosp Brest, Dept Oncol, Chru Morvan, Brest, France
[2] CHU Rennes, Rennes, France
[3] Hosp St Brieuc, Dept Pulm Dis, Ch Yves Le Foll, St Brieuc, France
[4] Ctr Hosp Bretagne Sud Lorient, Lorient, France
[5] Hosp St Malo, Dept Pulm Dis, St Malo, France
[6] Hosp Vannes, Ch Bretagne Atlantique, Vannes, France
[7] Hosp Dinan, Ch Rene Pleven, Dinan, France
[8] Hop Morvan, Chru Brest, Brest, France