[1
]From the Vascular Biology Laboratory, Division of Immunology, Hanson Centre for Cancer
Research (J.R.G., J.D., L.T., M.P., L.K., M.A.V.), Institute of Medical and Veterinary
Science and the University of Adelaide, South Australia; CSIRO Molecular Science (A.U.),
North Ryde, New South Wales, Australia; and Regeneron Pharmaceuticals, Inc (J.R.,
G.Y.), Tarrytown, NY.