The problem of rheumatic disease among seamen and fishermen.
D000328:Adult; D000368:Aged; D005398:Fisheries; D006801:Humans; D008875:Middle Aged; D009326:Naval Medicine; D009784:Occupational Diseases / Q000453:epidemiology*; D012216:Rheumatic Diseases / Q000453:epidemiology*; D012940:Social Problems