[1] AstraZeneca, Baar, Switzerland
[2] Univ Hosp Basel, Basel, Switzerland
[3] Univ Hosp Geneva HUG, Geneva, Switzerland
[4] Ctr Hosp Valais Romand, Sion, Switzerland
[5] Pulm Specialty Ctr Fiechter, Aathal, Switzerland
[6] Cantonal Hosp Baselland, Liestal, Switzerland
[7] Immunol Ctr Zurich, Zurich, Switzerland
[8] Bern Univ Hosp, Bern, Switzerland
[9] Pulm Clin Bethanien, Zurich, Switzerland
[10] Hosp Wetzikon GZO, Wetzikon, Switzerland
[11] Cantonal Hosp Luzern, Luzern, Switzerland
[12] Pulm Ctr Hirslanden, Zurich, Switzerland
[13] Cantonal Hosp Graubunden, Chur, Switzerland