[1] Emory Univ, Sch Med, Atlanta, GA 30322 USA
[2] Cedars Sinai Med Ctr, Los Angeles, CA 90048 USA
[3] Vanderbilt Univ, Med Ctr, Nashville, TN USA
[4] Vet Affairs Connecticut Healthcare Syst, Vet Affairs Cooperat Studies Program Coordinating, West Haven, CT USA
[5] Christiana Care Hlth Syst, Newark, DE USA
[6] S Texas Vet Hlth Care Syst, San Antonio, TX USA
[7] Hartford Hosp, Hartford, CT 06115 USA
[8] Univ Missouri, Mid Amer Heart Inst, Kansas City, MO 64110 USA
[9] St Louis Univ, St Louis, MO 63103 USA
[10] Montreal Heart Inst, Montreal, PQ H1T 1C8, Canada
[11] Weis Ctr Res, Geisinger Clin, Danville, PA 17822 USA
[12] London Hlth Sci Ctr, London, ON, Canada
[13] Univ Rochester, Rochester, NY USA
[14] Foothills Prov Gen Hosp, Calgary, AB T2N 2T9, Canada
[15] Univ Michigan, Ann Arbor, MI 48109 USA
[16] McMaster Univ, Hamilton, ON, Canada
[17] SUNY Buffalo, Western New York Vet Affairs Healthcare Network, Buffalo Gen Hosp, Buffalo, NY 14260 USA