title: The use of retirees to evaluate occupational hazards.
mesh_terms: D000328:Adult; D000368:Aged; D003710:Demography; D004781:Environmental Exposure; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009026:Mortality; D009784:Occupational Diseases / Q000453:epidemiology*; D010414:Pennsylvania; D012179:Retirement; D013232:Steel
chemical_list: D013232:Steel