title: Variability in COPD: the PLATINO study viewpoint.
authors.forename: María Victorina
authors.initials: MV
authors.lastname: López Varela
authors.forename: María
authors.initials: M
authors.lastname: Montes de Oca
mesh_terms: D015331:Cohort Studies; D015897:Comorbidity; D003430:Cross-Sectional Studies; D005500:Follow-Up Studies; D005541:Forced Expiratory Volume; D014644:Genetic Variation; D006801:Humans; D015337:Multicenter Studies as Topic; D010641:Phenotype; D029424:Pulmonary Disease, Chronic Obstructive / Q000453:epidemiology* / Q000503:physiopathology; D012720:Severity of Illness Index; D012737:Sex Factors; D013020:South America / Q000453:epidemiology; D011795:Surveys and Questionnaires; D014505:Urban Population