AU - Kale MS, Bishop TF, Federman AD, Keyhani S TI - TRends in the overuse of ambulatory health care services in the united states PT - JOUR DP - 2013 TA - JAMA Internal Medicine pages = {142-148}, VI - 173 IP - 2 AID - 10.1001/2013.jamainternmed.1022 [doi] 4100 - http://dx.doi.org/10.1001/2013.jamainternmed.1022 SO - JAMA Internal Medicine January 28, 2013 173(2):142