Primary prevention of pulmonary heart disease.
D000397:Air Pollution; D006801:Humans; D007239:Infections / Q000150:complications; D008171:Lung Diseases / Q000150:complications / Q000175:diagnosis / Q000517:prevention & control*; D011660:Pulmonary Heart Disease / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control*; D012907:Smoking / Q000150:complications; D014777:Virus Diseases / Q000150:complications