title: Is exposure to biomass smoke the biggest risk factor for COPD globally?
authors.forename: Sundeep
authors.initials: S
authors.lastname: Salvi
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Barnes
mesh_terms: D000328:Adult; D000393:Air Pollutants / Q000009:adverse effects*; D018533:Biomass; D002648:Child; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D052638:Particulate Matter / Q000009:adverse effects*; D029424:Pulmonary Disease, Chronic Obstructive / Q000139:chemically induced* / Q000453:epidemiology; D012307:Risk Factors; D012906:Smoke / Q000009:adverse effects*
chemical_list: D000393:Air Pollutants; D052638:Particulate Matter; D012906:Smoke