title: Zena Stein, Mervyn Susser and epidemiology: observation, causation and action.
authors.affiliation: University of Bristol, Department of Social Medicine, Bristol, UK.
authors.forename: George Davey
authors.initials: GD
authors.lastname: Smith
authors.forename: Ezra
authors.initials: E
authors.lastname: Susser
mesh_terms: D015984:Causality; D004813:Epidemiology / Q000266:history*; D005762:Gastroenterology / Q000266:history; D049673:History, 20th Century; D006801:Humans