TI - SUprisingly close PT - JOUR DP - 2012 TA - Archives of Internal Medicine pages = {1509}, VI - 172 IP - 19 AID - 10.1001/archinternmed.2012.4296 [doi] 4100 - http://dx.doi.org/10.1001/archinternmed.2012.4296 SO - Archives of Internal Medicine October 22, 2012 172(19):1509