[1] Gartnavel Royal Hosp, Glasgow, Lanark, Scotland
[2] Humanitas Res Hosp, Personalized Med Asthma & Allergy Clin, Milan, Italy
[3] Univ Klinikum Saarlandes Innere V, Homburg, Saarland, Germany
[4] Queens Univ, Kingston, ON, Canada
[5] UCLouvain, Clin Univ St Luc, Brussels, Belgium
[6] UCLouvain, Inst Expt & Clin Res, Brussels, Belgium
[7] Hosp Santa Creu & Sant Pau, Barcelona, Spain
[8] Family Allergy & Asthma Res Inst, Louisville, KY USA
[9] GSK, Real World Study Delivery, Value Evidence & Outcomes, Global Med, Stevenage, Herts, England
[10] GSK, Real World Study Delivery, Uxbridge, Middx, England
[11] GSK, Epidemiol, Collegeville, PA USA
[12] GSK, R&D Projects Clin Platforms & Sci, Clin Stat, Uxbridge, Middx, England
[13] GSK House, Global Med, Brentford, England
[14] GSK, Value Evidence & Outcomes, Philadelphia, PA USA