Occurrence of occupational diseases among Polish seaman and fishermen in the years 1969-1977.
D000328:Adult; D049673:History, 20th Century; D006801:Humans; D008297:Male; D008875:Middle Aged; D009326:Naval Medicine / Q000266:history; D009784:Occupational Diseases / Q000453:epidemiology* / Q000266:history; D011044:Poland