Authors: Peter Cram; John A House; John C Messenger; Robert N Piana; Phillip A Horwitz; John A Spertus Journal: Am Heart J Date: 2012-02 Impact factor: 4.749
Authors: Seth A Strope; Stephanie Daignault; John M Hollingsworth; Zaojun Ye; John T Wei; Brent K Hollenbeck Journal: Med Care Date: 2009-04 Impact factor: 2.983