AU - Madsen KA, Gosliner W, Woodward-Lopez G, Crawford PB TI - PHysical activity opportunities associated with fitness and weight status among adolescents in low-income communities PT - JOUR DP - 2009 TA - Archives of Pediatrics & Adolescent Medicine pages = {1014-1021}, VI - 163 IP - 11 AID - 10.1001/archpediatrics.2009.181 [doi] 4100 - http://dx.doi.org/10.1001/archpediatrics.2009.181 SO - Archives of Pediatrics & Adolescent Medicine November 1, 2009 163(11):1014