title: Sunbelt, frostbelt and public health.
authors.forename: M R
authors.initials: MR
authors.lastname: Greenberg
mesh_terms: D003710:Demography; D049711:History, Modern 1601-; D011634:Public Health / Q000266:history*; D013223:Statistics as Topic / Q000266:history*; D014481:United States