title: Reflections on reaching a quadricentennial.
authors.affiliation: Yale University School of Medicine, New Haven, CT, USA.
authors.forename: A R
authors.initials: AR
authors.lastname: Feinstein
mesh_terms: D004812:Epidemiologic Methods; D004813:Epidemiology / Q000266:history*; D049673:History, 20th Century; D011642:Publications / Q000266:history*