title: John Snow.
authors.affiliation: palewell@globalnet.co.uk
authors.forename: Sandra
authors.initials: S
authors.lastname: Hempel
mesh_terms: D002771:Cholera / Q000453:epidemiology* / Q000266:history; D004196:Disease Outbreaks / Q000266:history; D004739:England / Q000453:epidemiology; D049672:History, 19th Century; D006801:Humans; D010506:Periodicals as Topic