AU - Horn JR TI - HArd-stops for drug interactions PT - JOUR DP - 2011 TA - Archives of Internal Medicine pages = {702-710}, VI - 171 IP - 7 AID - 10.1001/archinternmed.2011.109 [doi] 4100 - http://dx.doi.org/10.1001/archinternmed.2011.109 SO - Archives of Internal Medicine April 11, 2011 171(7):702