title: Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality worldwide.
authors.forename: Nicola A
authors.initials: NA
authors.lastname: Hanania
mesh_terms: D003906:Developing Countries; D006801:Humans; D015995:Prevalence; D029424:Pulmonary Disease, Chronic Obstructive / Q000453:epidemiology*