title: Hemoptysis: a major respiratory symptom.
mesh_terms: D000328:Adult; D002283:Carcinoma, Bronchogenic / Q000150:complications; D002318:Cardiovascular Diseases / Q000150:complications; D003937:Diagnosis, Differential; D005260:Female; D006396:Hematemesis / Q000175:diagnosis; D006469:Hemoptysis / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications; D008175:Lung Neoplasms / Q000150:complications; D008297:Male; D008875:Middle Aged; D012141:Respiratory Tract Infections / Q000150:complications; D012907:Smoking / Q000150:complications