[1] Mainz Univ Hosp, Dept Pulm, D-55131 Mainz, Germany
[2] Inst Univ Cardiol & Pneumol Quebec, Dept Med, Ctr Rech, Quebec City, PQ, Canada
[3] Morgantown Pulm Associates, Dept Clin Res, Morgantown, WV USA
[4] Lund Univ, Dept Resp Med & Allergol, Lund, Sweden
[5] Ghent Univ Hosp, Dept Resp Med, Ghent, Belgium
[6] Pulm Res Inst Southeast Michigan, Livonia, MI USA
[7] Klin Golnik, Golnik, Slovenia
[8] Ctr Rech Appl Allergie Quebec, Dept Med, Quebec City, PQ, Canada
[9] Queens Univ Belfast, Dept Med, Ctr Infect & Immun, Sch Med Dent & Biomed Sci, Belfast, Antrim, North Ireland
[10] Univ Fed Santa Catarina, NUPAIVA Asthma Res Ctr, Dept Pulmonol, BR-88040900 Florianopolis, SC, Brazil
[11] Univ Otago, Dunedin Sch Med, Dunedin, New Zealand
[12] Queen Elizabeth Hosp, Dept Resp Med, Adelaide, SA, Australia
[13] Boehringer Ingelheim Pharma GmbH & Co KG, Dept Med Affairs Resp, Ingelheim, Germany
[14] Boehringer Ingelheim GmbH & Co KG, Dept Med, Burlington, ON, Canada
[15] Boehringer Ingelheim Pharmaceut Inc, Dept Biostat, Ridgefield, CT 06877 USA
[16] Univ Tubingen, Dept Sports Med, Med Clin 5, Tubingen, Germany
[17] Boehringer Ingelheim BV, Dept Med, Alkmaar, Netherlands
[18] Airway Res Ctr North, Pulm Res Inst, Lung Clin Grosshansdorf, Grosshansdorf, Germany
[19] Univ Cape Town, Dept Med, Div Pulmonol, Lung Inst, ZA-7925 Cape Town, South Africa