Neighborhood socioeconomic status predictors of physical activity through young to middle adulthood: the CARDIA study.
Boone-Heinonen J, Diez Roux AV, Kiefe CI, Lewis CE, Guilkey DK, Gordon-Larsen P. Neighborhood socioeconomic status predictors of physical activity through young to middle adulthood: the CARDIA study. Soc Sci Med. 2011 Mar; 72(5):641-9.