AU - Sipahi I, Carrigan TP, Rowland DY, Stambler BS, Fang JC TI - Impact of qrs duration on clinical event reduction with cardiac resynchronization therapy: Meta-analysis of randomized controlled trials PT - JOUR DP - 2011 TA - Archives of Internal Medicine pages = {1454-1462}, VI - 171 IP - 16 AID - 10.1001/archinternmed.2011.247 [doi] 4100 - http://dx.doi.org/10.1001/archinternmed.2011.247 SO - Archives of Internal Medicine September 12, 2011 171(16):1454