[1] Univ Groningen, Univ Med Ctr Groningen, Dept Epidemiol, Groningen, Netherlands
[2] Univ Groningen, Univ Med Ctr Groningen, Groningen Res Inst Asthma & COPD GRIAC, Groningen, Netherlands
[3] Imperial Coll London, Natl Heart & Lung Inst, Populat Hlth & Occupat Dis, Emmanuel Kaye Bldg,1B Manresa Rd, London SW3 6LR, England
[4] King Chulalongkorn Mem Hosp, Thai Red Cross Soc, Bangkok, Thailand
[5] Chulalongkorn Univ, Dept Prevent & Social Med, Bangkok, Thailand
[6] INSERM, VIMA Aging & Chron Dis Epidemiol & Publ Hlth Appr, U1168, Villejuif, France
[7] Univ Versailles St Quentin En Yvelines, UMR S 1168, Montigny Le Bretonneux, France
[8] ISGlobal, Barcelona, Spain
[9] Univ Pompeu Fabra UPF, Barcelona, Spain
[10] CIBER Epidemiol & Salud Publ CIBERESP, Barcelona, Spain
[11] Paris Descartes Univ, Paris Fac Pharm, INSERM, HERA Team Hlth Environm Risk Assessment,U1153, Paris, France
[12] Marmara Univ, Istanbul, Turkey
[13] Univ West Attica, Midwifery Dept, Athens, Greece
[14] Univ Athens, Evangelismos Hosp, Dept Crit Care & Pulm Serv, Med Sch, Athens, Greece
[15] Uludag Univ, Dept Pulm Med, Fac Med, Bursa, Turkey
[16] Univ Beira Interior, Hlth Sci Res Ctr CICS UBI, Fac Hlth Sci, Covilha, Portugal
[17] Nova Univ, Natl Sch Publ Hlth, Publ Hlth Res Ctr, Lisbon, Portugal
[18] Univ Hosp, CHUCB, Covilha, Portugal