完成机构：[1]Department of Anesthesiology and Critical Care, VA Boston Healthcare System andMassachusetts General Hospital, Harvard Medical School [2]Department of Anesthesia and Critical Care, Beth Israel Deaconess Medical Center, Harvard Medical School [3]Department of Cardiology, VA Boston Healthcare System and Boston University Medical Center [4]Department of Anesthesiology, Boston University Medical Center, Boston University School of Medicine Boston, Massachusetts [5]不详
