PMID: 4055268 [PubMed - indexed for MEDLINE]
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[Przegl Epidemiol. 1982]
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[Przegl Epidemiol. 1983]
Int J Dermatol. 1978 Jan-Feb; 17(1):20-30.
[Int J Dermatol. 1978]
Hokkaido Igaku Zasshi. 1989 Mar; 64(2):139-45.
[Hokkaido Igaku Zasshi. 1989]
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