title: John Snow: pioneer of anaesthesia and an early epidemiologist.
authors.affiliation: Guy, Kings and St Thomas' School of Biomedical Sciences, London SE1 1UL.
authors.forename: Harold
authors.initials: H
authors.lastname: Ellis
mesh_terms: D000758:Anesthesia / Q000266:history*; D002771:Cholera / Q000266:history; D004196:Disease Outbreaks / Q000266:history; D004813:Epidemiology / Q000266:history*; D049672:History, 19th Century; D006801:Humans