1. From the Departments of Pediatrics (C.Z., Y.L., L.D.A., G.M.E., P.A.J.), Physiology and Biophysics (P.A.J.), and Internal Medicine (G.M.E.), Georgetown University Medical Center, Washington, DC; the Department of Physiology (U.H.), Case Western Reserve School of Medicine, Cleveland, Ohio; the Department of Pathology (R.A.F.), Virginia University for the Health Sciences, Charlottesville, Va; and the Department of Cardiology (C.Z.), Daping Hospital, Third Military Medical University, Chongqing,...