Modern epidemiology: forward to the 18th century!
Bégaud
B
B
D004813:Epidemiology / Q000266:history*; D005602:France / Q000453:epidemiology; D049671:History, 18th Century; D006801:Humans; D018570:Risk Assessment / Q000266:history; D012899:Smallpox / Q000453:epidemiology / Q000266:history*; D012900:Smallpox Vaccine / Q000266:history*
D012900:Smallpox Vaccine