title: Introduction.
authors.affiliation: Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853-6301, USA.
authors.forename: Edward A
authors.initials: EA
authors.lastname: Frongillo
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Habicht
mesh_terms: D006266:Health Education; D006801:Humans; D052756:Nutritional Sciences / Q000193:education*