1. From the Vanderbilt University, Nashville, TN (A.R.H., J.H.N.); Cleveland Clinic, OH (G.J.B., M.A.A., J.B., S.A.A.C., S.C.E., B.H., J.K.L., M.A.O., W.H.W.T.); Wayne State University/John D. Dingell VAMC, Detroil, MI (A.A.); Columbia University, New York, NY (E.B.R., W.K.C.); Mayo Clinic, Rochester, MN (B.A.B., R.P.F.); Pulmonary Hypertension Association, Silver Spring, MD (M.P.G.); New York University Medical Center (G.G.); Johns Hopkins Hospital, Baltimore, MD (P.M.H., S.C.M.); Tufts Medical Center...