[1] Catholic Univ Louvain, Inst Rech Expt & Clin, Pole Pneumol Orl & Dermatol, Brussels, Belgium
[2] Catholic Univ Louvain, Inst Rech Expt & Clin, Brussels, Belgium
[3] Vanderbilt Ingram Canc Ctr, Div Allergy Pulm & Crit Care Med, Nashville, TN USA
[4] CHU UCL Namur, Div Pneumol, Godinne Site, Yvoir, BELARUS
[5] Clin Univ St Luc, Div Pneumol, Brussels, Belgium