The relative contributions of nature and nurture in chronic obstructive pulmonary disease.
D000367:Age Factors; D000397:Air Pollution; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000209:etiology* / Q000235:genetics; D008297:Male; D012141:Respiratory Tract Infections / Q000150:complications; D012907:Smoking / Q000150:complications