title: Rx exercise: physical activity is good medicine.
authors.affiliation: RAND Corporation, Pittsburgh, PA. Electronic address: stein@rand.org.
authors.forename: Bradley D
authors.initials: BD
authors.lastname: Stein
authors.affiliation: RAND Corporation, Pittsburgh, PA.
authors.forename: Tamara
authors.initials: T
authors.lastname: Dubowitz
mesh_terms: D015444:Exercise; D006801:Humans