1. From the Department of Pathology and Laboratory Medicine (S.F., H.D.X., J.W.A., K.E.B.), Emory University School of Medicine, Atlanta, Ga; Institut National de la Sante et de la Recherché Médicale (C.H., A.M., P.C.), Unité 833, Angiogénèse Embryonnaire et Pathologique, Collège de France, Paris, France; St Vincent’s Institute of Medical Research and the Department of Medicine (D.J.C.), University of Melbourne, St Vincent’s Hospital, Fitzroy, Victoria, Australia; and the Howard Hughes Medical...