1. From the Bernard O’Brien Institute of Microsurgery (A.N.M., S.K.B., X.L.H., D.M., W.A.M.); Departments of Surgery (A.N.M., D.M., W.A.M.) and Medicine (R.J.D., A.R.K., S.I.), St Vincent’s Hospital, University of Melbourne; and Cardiovascular Therapeutics Unit (C.E.W., J.A.A.), Department of Pharmacology, University of Melbourne, Melbourne, Australia.