[1] Oxford Univ Hosp Trust, Oxford Ctr Resp Med, Oxford Resp Trials Unit, Oxford, England
[2] Univ Athens, Sch Med, Evangelismos Hosp, Dept Crit Care & Pulm Med 1, Athens, Greece
[3] Arnau de Vilanova Univ Hosp, Biomed Res Inst Lleida, Dept Internal Med, Pleural Med Unit, Lleida, Spain
[4] Univ Western Australia, Sch Med & Pharmacol, Natl Ctr Asbestos Related Dis, Perth, WA, Australia
[5] Sir Charles Gairdner Hosp, Dept Resp Med, Nedlands, WA, Australia
[6] Univ Patras, Fac Med, Dept Physiol, Lab Mol Resp Carcinogenesis, Achaia, Greece
[7] Ludwig Maximilians Univ Munchen, Univ Hosp, Comprehens Pneumol Ctr CPC, Munich, Germany
[8] Helmholtz Zentrum Munchen, Munich, Germany
[9] German Ctr Lung Res DZL, Munich, Germany