The orgins of vaccinia virus-a brief rejoinder.
Razzell
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Faculty of Social Science, Open University, Walton Hall, Milton Keynes, UK.
D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D012899:Smallpox / Q000266:history*; D006113:United Kingdom; D014612:Vaccines / Q000266:history*; D014616:Vaccinia virus
D014612:Vaccines