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↑ “Index entry”. FreeBMD. ONS. 2011年10月23日閲覧。
↑ Smallpox Vaccination: A Review, Part I. Background, Vaccination Technique, Normal Vaccination and Revaccination, and Expected Normal Reactions, Vincent A. Fulginiti, Clinical Infectious Diseases, Vol. 37, No. 2, Jul. 15, 2003
1 2 Smallpox Scares, Hugh Pennington, London Review of Books, Vol. 24 No. 17, 5 September 2002
1 2 SARS Cases in Asia Show Labs' Risks, Washington Post, May 29, 2004
1 2 3 Smallpox death in Britain challenges presumption of laboratory safety, Science, 2 March 1979, Vol. 203 no. 4383
↑ Smallpox, faqs.org
↑ Smallpox: Eradicating the Scourge, BBC History, 2011-02-17