[1] Universite Rene Descartes, Hop Ambroise Pare, Serv Pneumol, F-92104 Boulogne, France
[2] Manchester Royal Infirm, Manchester M13 9WL, Lancs, England
[3] Univ Pavia, Cattedra Chemioterapia, I-27100 Pavia, Italy
[4] Univ Toulouse, Hop Ranggueil, Serv Pneumol, Toulouse, France
[5] Hosp bellvitge, Serv Pneumol, Lhospitalet De Llobregat, Barcelona, Spain
[6] Krankenhaus Zehlendorf, Lungenklin Heckeshorn, Berlin, Germany
[7] Univ Barcelona, Dept Med, Hosp Clin, Serv Pneumol & Allergia Resp, Barcelona, Spain