title: 150th Anniversary of John Snow and the pump handle.
mesh_terms: D000776:Anesthesiology / Q000266:history; D002771:Cholera / Q000453:epidemiology / Q000266:history* / Q000635:transmission; D004739:England; D004813:Epidemiology / Q000266:history*; D049672:History, 19th Century; D006801:Humans