Authors: Darren E Zinner; Dragana Bolcic-Jankovic; Dragana Bjankovic; Brian Clarridge; David Blumenthal; Eric G Campbell Journal: Health Aff (Millwood) Date: 2009 Nov-Dec Impact factor: 6.301
Authors: Robert A Harrington; Robert M Califf; Patricia K Hodgson; Eric D Peterson; Matthew T Roe; Daniel B Mark Journal: Circulation Date: 2009-06-09 Impact factor: 29.690