[1] Harvard Univ, Sch Med, Beth Israel Deaconess Med Ctr, Dept Radiol, Boston, MA 02215 USA
[2] Beth Israel Deaconess Med Ctr, Dept Med, Cardiol Sect, Boston, MA 02215 USA
[3] Yale Univ, Sch Med, Dept Med, Sect Cardiovasc Med, New Haven, CT 06510 USA
[4] Yale Univ, Sch Med, Dept Epidemiol & Publ Hlth, Sect Hlth Policy & Adm, New Haven, CT 06510 USA
[5] Yale Univ, Sch Med, Dept Epidemiol & Publ Hlth, New Haven, CT 06510 USA
[6] Yale Univ, Sch Med, Dept Med, Robert Wood Johnson Clin Scholars Program, New Haven, CT 06510 USA
[7] Yale New Haven Hlth, Ctr Outcomes Res & Evaluat, New Haven, CT USA