[1] Duke Univ, Med Ctr Cardiovasc Dis, Res, Durham, NC 27708 USA
[2] Cardiovasc Management Illinois, Woodridge, IL USA
[3] NHLBI, NIH, Div Cardiovasc Sci, Bldg 10, Bethesda, MD 20892 USA
[4] Lee Health, Heart & Vasc Inst, Ft Myers, FL USA
[5] HCA Healthcare, Phys Serv, Nashville, TN USA
[6] Hancock Daniel & Johnson PC, Innsbrook, VA USA
[7] Stanford Univ, Finance & Adm, Stanford, CA 94305 USA
[8] Stanford Univ, Dept Med, Stanford, CA 94305 USA
[9] Rush Univ, Med Ctr, Chicago, IL 60612 USA
[10] St Vincent Heart Ctr, Heart Failure & Cardiac Transplantat, Fitzroy, Vic, Australia
[11] Cornell Univ, Weill Med Coll, Med, Ithaca, NY 14853 USA
[12] New York Cardiol Associates, New York, NY USA