[1] Univ Groningen, Univ Med Ctr Groningen, Groningen Res Inst Asthma & COPD GRIAC, Groningen, Netherlands
[2] Natl Ctr Cardiol & Internal Med, Dept Pulm Dis, Bishkek, Kyrgyzstan
[3] UCL, UCL Resp, London, England
[4] Univ Autonoma Madrid, Hosp Univ Princesa, Madrid, Spain
[5] Johns Hopkins Univ, Sch Med, Div Pulm & Crit Care, Baltimore, MD USA
[6] Johns Hopkins Univ, Bloomberg Sch Publ Hlth, Dept Int Hlth, Baltimore, MD USA
[7] Johns Hopkins Univ, Ctr Global Noncommunicable Dis Res & Training, Baltimore, MD USA
[8] Woolcock Inst Med Res, Sydney, NSW, Australia
[9] Univ New South Wales, South Western Sydney Clin Sch, Sydney, NSW, Australia
[10] Taipei Med Univ, Shuang Ho Hosp, Dept Internal Med, Div Thorac Med, Taipei, Taiwan
[11] Univ Med & Pharm Grigore T Popa Iasi UMF Iasi, Iasi, Romania
[12] AB PRISMA, Biomed Res Unit, Lima, Peru
[13] Univ San Martin de Porres, Fac Med Humana, Ctr Invest Envejecimiento CIEN, Lima, Peru
[14] Makerere Lung Inst, Dept Med, Kampala, Uganda
[15] Univ Peruana Cayetano Heredia, Sch Med, Dept Med, Lima, Peru
[16] ARK Fdn, Dhaka, Bangladesh
[17] Univ Sydney, Fac Med & Hlth, Sydney, NSW, Australia
[18] Univ Minho, Life & Hlth Sci Res Inst ICVS, Sch Med, Braga, Portugal
[19] Univ Groningen, Univ Med Ctr Groningen, Dept Hlth Sci, Unit Global Hlth, Groningen, Netherlands
[20] Leiden Univ Med Ctr, Dept Publ Hlth & Primary Care, Leiden, Netherlands