The Broad Street pump revisited.
D002771:Cholera / Q000453:epidemiology / Q000266:history* / Q000401:mortality; D004196:Disease Outbreaks / Q000266:history*; D004812:Epidemiologic Methods; D049672:History, 19th Century; D006801:Humans; D008131:London; D014171:Transients and Migrants