N Engl J Med 2015 Apr;372(15):1419-29
From Fairview-University Medical Center, Minneapolis (M.E.S., S.P., J.M.), and Mayo Clinic, Rochester (G.A.N.) - both in Minnesota; Johns Hopkins University (P.M.N., G.W.) and University of Maryland (R.C.) - both in Baltimore; New England Research Institutes, Data Coordinating Center, Watertown (S.F.A., S.G.), Boston Children's Hospital (S.R.S.), Massachusetts General Hospital (L.B., C.P.S.), Brigham and Women's Hospital (R.M.K.), Tufts University (R.E.), St. Elizabeth's Medical Center (R.H.), and Beth Israel Deaconess Medical Center (L.U.), Boston, and Baystate Medical Center, Springfield (R.E.) - all in Massachusetts; University of Pittsburgh and University of Pittsburgh-Mercy Hospital, Pittsburgh (D.J.T., P.D.); Puget Sound Blood Center and University of Washington (M.D.) and Swedish Medical Center (S.Y.) - all in Seattle; Duke University, Durham (E.B.-G., J.H.L., T.L.O.), and University of North Carolina, Chapel Hill (Y.P.) - both in North Carolina; McMaster University, Hamilton, ON, Canada (M.A.B.); Indiana-Ohio Heart and St. Joseph Hospital (V.S.) - both in Fort Wayne, IN; Rutgers Robert Wood Johnson Medical School, New Brunswick (J.L.C.), and Newark Beth Israel Medical Center, Newark (R.K.) - both in New Jersey; University of Iowa, Iowa City (T.R.); Aurora St. Luke's Medical Center (K.E.P.) and Froedert Memorial Lutheran Hospital (J.G.M.), Milwaukee, and Aspirus Heart and Vascular Institute, Wausau (R.M.) - all in Wisconsin; Vanderbilt University, Nashville (P.P.Y.); University of Texas Southwestern Medical Center, Dallas (P.E.G.); Children's Healthcare of Atlanta, Emory University, and Emory University Hospital, Atlanta (C.D.J.); St. Luke's-Texas Heart Institute, Houston (A.B.); Weill Cornell Medical College (M.M.C.) and Columbia University Medical Center (E.A.H.) - both in New York; University of Florida, Gainesville (C.T.K.); University of Oklahoma, Oklahoma City (P.R.R.); and University of North Dakota School of Medicine and Health Sciences, Fargo (C.D.).