AU - Cheung PT, Wiler JL, Ginde AA TI - CHanges in barriers to primary care and emergency department utilization PT - JOUR DP - 2011 TA - Archives of Internal Medicine pages = {1393-1400}, VI - 171 IP - 15 AID - 10.1001/archinternmed.2011.350 [doi] 4100 - http://dx.doi.org/10.1001/archinternmed.2011.350 SO - Archives of Internal Medicine August 8, 2011 171(15):1393