[1] Yale Univ, Sch Med, Sect Cardiovasc Med, New Haven, CT USA
[2] NHLBI, Off Biostat Res, Bethesda, MD 20892 USA
[3] Inova Heart & Vasc Inst, Falls Church, VA USA
[4] Duke Univ, Duke Clin Res Inst, Durham, NC USA
[5] Duke Clin Res Inst, Durham, NC USA
[6] Univ Alberta, Edmonton, AB, Canada
[7] Thomas Jefferson Univ, Philadelphia, PA USA
[8] Yale Univ, Ctr Outcomes Res & Evaluat, Sch Med, New Haven, CT USA
[9] Massachusetts Gen Hosp, Div Cardiol, Boston, MA USA
[10] Harvard Med Sch, Boston, MA USA
[11] Baim Inst Clin Res, Heart Failure & Biomarker Trials, Boston, MA USA
[12] Yale Sch Med, Sect Cardiovasc Med, 333 Cedar St,Dana Bldg,POB 208017, New Haven, CT 06517 USA