[1] UZ Leuven, Dept Otorhinolaryngol, B-3000 Leuven, Belgium
[2] Katholieke Univ Leuven, Dept Neurosci, Expt Otorhinolaryngol, Rhinol Res, B-3000 Leuven, Belgium
[3] UZ Leuven, Dept Trauma Surg, B-3000 Leuven, Belgium
[4] Katholieke Univ Leuven, Dept Dev & Regenerat, Locomotor & Neurol Disorders, B-3000 Leuven, Belgium
[5] UZ Leuven, Dept Pneumol, B-3000 Leuven, Belgium
[6] Katholieke Univ Leuven, Dept Chron Dis & Metab, Resp Dis & Thorac Surg, B-3000 Leuven, Belgium
[7] UZ Leuven, Pharm Dept, B-3000 Leuven, Belgium
[8] Katholieke Univ Leuven, Lab Gene Technol, Dept Biosyst, B-3000 Leuven, Belgium
[9] Katholieke Univ Leuven, Dept Pharmaceut & Pharmacol Sci, Clin Pharmacol & Pharmacotherapy, B-3000 Leuven, Belgium
[10] Katholieke Univ Leuven, Allergy & Clin Immunol Res Unit, Dept Microbiol Immunol & Transplantat, B-3000 Leuven, Belgium