Columbia University, New York, NY (C.G.-B.); George Washington University Biostatistics Center, Washington, DC (E.A.T.); University of Texas Health Science Center at Children's Memorial Hermann Hospital, Houston (S.C.B.); University of Texas Medical Branch, Galveston (G.R.S.); University of Texas Southwestern Medical Center, Dallas (B.M.C.), TX; University of Alabama at Birmingham, Birmingham, AL (A.T.N.T.); Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD (U.M.R.); Brown University, Providence, RI (D.J.R.); Ohio State University, Columbus (D.S.M.); MetroHealth Medical Center, Case Western Reserve University, Cleveland (E.K.C.), OH; University of Utah Health Sciences Center, Salt Lake City, UT (E.A.S.C.); University of North Carolina at Chapel Hill, Chapel Hill (J.M.T.); Duke University, Durham (G.K.S.), NC; Northwestern University, Chicago, IL (A.M.P.); University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO (R.S.G.); Stanford University, Stanford, CA (M.E.N.); University of Pittsburgh, Pittsburgh, PA (S.N.C.); Oregon Health and Science University, Portland, OR (J.E.T.); Wayne State University, Detroit, MI (Y.S.); Medical University of South Carolina, Charleston, SC (J.P.V.); and Emory University, Atlanta, GA (L.J.)