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Publikováno v:
South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde. 78(9)
The Chamber of Mines of South Africa employs approximately 750,000 miners from all over southern Africa. Sero-surveys in 1986 showed that, depending on geographical area of origin, between 0.02% and 3.76% of miners were positive for human immunodefic