AU - Cherubini A, Oristrell J, Pla X, et al TI - THe persistent exclusion of older patients from ongoing clinical trials regarding heart failure PT - JOUR DP - 2011 TA - Archives of Internal Medicine pages = {550-556}, VI - 171 IP - 6 AID - 10.1001/archinternmed.2011.31 [doi] 4100 - http://dx.doi.org/10.1001/archinternmed.2011.31 SO - Archives of Internal Medicine March 28, 2011 171(6):550