TI - CHeetah PT - JOUR DP - 2010 TA - Archives of Internal Medicine pages = {674}, VI - 170 IP - 8 AID - 10.1001/archinternmed.2010.14 [doi] 4100 - http://dx.doi.org/10.1001/archinternmed.2010.14 SO - Archives of Internal Medicine April 26, 2010 170(8):674