title: The roots of public health.
authors.affiliation: Department of Preventive Medicine, American Medical Association, Chicago, IL 60610.
authors.forename: T P
authors.initials: TP
authors.lastname: Houston
mesh_terms: D049690:History, Ancient; D006801:Humans; D008877:Middle East; D011322:Primary Prevention; D011634:Public Health / Q000266:history; D014481:United States