[Sámuel Zay born 250 years ago (1753-1812)].
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D001877:Books / Q000266:history*; D006266:Health Education / Q000266:history*; D049671:History, 18th Century; D049672:History, 19th Century; D006801:Humans; D006814:Hungary; D007114:Immunization / Q000266:history*; D008903:Minerals / Q000266:history*; D012899:Smallpox / Q000266:history* / Q000517:prevention & control
D008903:Minerals