AU - Turner LR, Chaloupka FJ TI - Student access to competitive foods in elementary schools: Trends over time and regional differences PT - JOUR DP - 2012 TA - Archives of Pediatrics & Adolescent Medicine pages = {164-169}, VI - 166 IP - 2 AID - 10.1001/archpediatrics.2011.837 [doi] 4100 - http://dx.doi.org/10.1001/archpediatrics.2011.837 SO - Archives of Pediatrics & Adolescent Medicine February 1, 2012 166(2):164