Epidemiologic methods in occupational health research.
D004781:Environmental Exposure; D004812:Epidemiologic Methods; D005069:Evaluation Studies as Topic; D006801:Humans; D009026:Mortality; D009784:Occupational Diseases / Q000209:etiology*; D009787:Occupational Medicine; D011446:Prospective Studies; D012042:Registries; D012106:Research; D012107:Research Design; D012189:Retrospective Studies; D014798:Vital Statistics