[1] Univ Hosp Liege, Dept Pulmonol, Liege, Belgium
[2] CHR Citadelle, Dept Pulmonol, Liege, Belgium
[3] Clin Saint Pierre Ottignies, Dept Pulmonol, Ottignies, Belgium
[4] CH Jolimont, Dept Oncol, Haine St Paul, La Louviere, Belgium
[5] CHIREC Hosp, CHIREC Canc Inst, Dept Pulmonol, Brussels, Belgium
[6] Jessa Hosp, Dept Pulmonol & Thorac Oncol, Hasselt, Belgium
[7] Grand Hop Charleroi, Dept Pulmonol, Gilly, Belgium
[8] MSD Belgium, Med Affairs Dept, Brussels, Belgium
[9] Imelda Hosp, Dept Pneumonol, Bonheiden, Belgium
[10] Vrije Univ Brussel VUB, Univ Ziekenhuis Brussel UZ Brussel, Dept Med Oncol, Oncologisch Cent, Brussels, Belgium
[11] AZ Turnhout, Dept Pulmonol, Turnhout, Belgium
[12] AZ Delta, Dept Pulm Dis, Roeselare, Belgium
[13] AZ Groeninge, Dept Pulmonol, Kortrijk, Belgium
[14] Algemeen Ziekenhuis Nikolaas, St Niklaas, Belgium
[15] ZNA Middelheim, Dept Pulmonol, Antwerp, Belgium
[16] Antwerp Univ Hosp, MOCA Thorac Oncol, Edegem, Belgium
[17] CHU UCL Namur, Div Pulmonol, Godinne Site, Yvoir, Belgium
[18] Univ Catholique Louvain UCLouvain, Inst Rech Expt & Clin IREC, Pole Pneumol ENT & Dermatol PNEU, Brussels, Belgium
[19] Univ Hosp KU Leuven, Resp Oncol Unit, Leuven, Belgium
[20] Clin Univ St Luc, Dept Pulmonol, Saint Luc, Belgium
[21] Univ Ghent, Dept Resp Med, Ghent, Belgium
[22] Univ Hosp KU Leuven, Resp Oncol Unit, CONTACT Johan Vansteenkiste, Herestr 49, B-3000 Leuven, Belgium