1. From the Department of Emergency Medicine (M.W.D., M.B., M.N.C., J.D.S.); Department of Medicine, Division of Critical Care (M.W.D., M.H.); Department of Anesthesia Critical Care (M.N.C.); Department of Medicine, Division of Gastroenterology (S.G.); Department of Medicine, Division of Cardiology (D.C.), Beth Israel Deaconess Medical Center, Boston, MA; Department of Emergency Medicine, Henry Ford Hospital, Detroit, MI (J.M.); and Department of Emergency Medicine, Duke University Hospital, Durham, NC...