Hypersensitivity pneumonitis--economic and legal aspects.
D000542:Alveolitis, Extrinsic Allergic / Q000191:economics*; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D009784:Occupational Diseases / Q000191:economics*; D014481:United States; D014942:Workers' Compensation / Q000266:history / Q000331:legislation & jurisprudence*