[1] Yale New Haven Med Ctr, Ctr Outcomes Res & Evaluat, New Haven, CT USA
[2] St Lukes Hosp, Mid Amer Heart Inst, Cardiovasc Educ & Outcomes Res, Kansas City, MO 64111 USA
[3] Univ Missouri, Dept Internal Med, Sect Cardiovasc Med, Kansas City, MO 64110 USA
[4] Yale Univ, Sch Med, Dept Internal Med, Sect Cardiovasc Med, New Haven, CT 06510 USA
[5] Yale Univ, Sch Med, Dept Epidemiol & Publ Hlth, Sect Hlth Policy & Adm, New Haven, CT 06510 USA
[6] Yale Univ, Sch Med, Robert Wood Johnson Clin Scholars Program, New Haven, CT USA