title: Hypersensitivity pneumonitis. I. A discussion of farmer's lung.
mesh_terms: D000328:Adult; D000936:Antigen-Antibody Complex; D005203:Farmer's Lung / Q000145:classification / Q000209:etiology* / Q000276:immunology; D005260:Female; D006801:Humans; D008297:Male; D011014:Pneumonia / Q000209:etiology; D012130:Respiratory Hypersensitivity / Q000145:classification / Q000209:etiology* / Q000276:immunology
chemical_list: D000936:Antigen-Antibody Complex