1. From the CRUK Molecular Angiogenesis Laboratory (S.K., K.L., S.H., R.B., V.L.H.), Institute for Biomedical Research, The Medical School, University of Birmingham; Cancer Research UK Centre for Cell and Molecular Biology (S.A., C.J.M.), Institute of Cancer Research, London; and Section of Oncology and Clinical Research (S.A., M.S., G.M.), Leeds Institute of Molecular Medicine, St James's University Hospital, United Kingdom.