title: Impact.
authors.forename: Robert H
authors.initials: RH
authors.lastname: Purcell
mesh_terms: D058872:Epidemics / Q000266:history*; D055868:Floods / Q000266:history*; D006505:Hepatitis / Q000453:epidemiology / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D007194:India / Q000453:epidemiology