[1] Baylor Coll Med, Sect Cardiol, Dept Med, Houston, TX 77030 USA
[2] Cleveland Clin Fdn, Dept Med, Cleveland, OH 44195 USA
[3] Pakistan Aga Khan Univ, Aga Khan Univ, Dept Med, Karachi, Pakistan
[4] Kaiser Permanente, Oakland Med Ctr, Oakland, CA USA
[5] Eastern Virginia Med Sch EVMS, Sect Cardiol, Dept Internal Med, Norfolk, VA USA
[6] Houston Methodist, DeBakey Heart & Vasc Inst, Houston, TX USA
[7] Henry Ford Hosp, Dept Internal Med, Detroit, MI USA
[8] Univ Queensland, John Ochsner Heart & Vasc Inst, Ochsner Clin Sch, Sch Med, New Orleans, LA USA
[9] Amer Heart Assoc, Dallas, TX USA
[10] Aga Khan Univ, Biomed Sci Med Coll, Dept Biol, Karachi, Pakistan
[11] Aga Khan Univ, Biomed Sci Med Coll, Karachi, Pakistan
[12] Baylor Coll Med, Sect Cardiovasc Res, Dept Med, Houston, TX USA
[13] Michael E DeBakey VA Med Ctr, Hlth Serv Res & Dev Ctr Innovat Qual Effectivene, Hlth Policy Qual & Informat Program, Houston, TX USA