[1] Harvard Med Sch, Brigham & Womens Hosp, Boston, MA USA
[2] Univ Minnesota, Minneapolis VA Ctr Care Delivery & Outcomes Res, Minneapolis, MN USA
[3] Univ Glasgow, BHF Glasgow Cardiovasc Res Ctr, Glasgow, Lanark, Scotland
[4] St Lukes Mid Amer Heart Inst, Kansas City, MO USA
[5] Univ Missouri Kansas City, Kansas City, MO USA
[6] Natl Heart Ctr Singapore, Singapore, Singapore
[7] Duke Natl Univ Singapore, Singapore, Singapore
[8] Univ Nacl Cordoba, Cordoba, Argentina
[9] Erasmus MC, Rotterdam, Netherlands
[10] Duke Univ, Med Ctr, Durham, NC 27706 USA
[11] Northwestern Univ, Feinberg Sch Med, Chicago, IL USA