[Studies on silicosis as reported in migrant workers. (Report 1) Recent observation of silicosis patients (author's transl)].
D000328:Adult; D000368:Aged; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D012829:Silicosis / Q000145:classification / Q000453:epidemiology*; D011795:Surveys and Questionnaires; D014171:Transients and Migrants