1. Departments of Endocrinology (H.E.T., J.A.H.W.), Oxford, United Kingdom OX2 6HE
2. Neuropathology (Z.N., M.M.E.), Radcliffe Infirmary, Oxford, United Kingdom OX2 6HE
3. Department of Pharmacology, University of Oxford (Z.N.), Oxford, United Kingdom OX2 6HE
4. Departments of Cellular Science (K.C.G.), Oxford, United Kingdom OX2 6HE
5. Molecular Angiogenesis Group (A.L.H.), Imperial Cancer Research Fund, Institute of Molecular Medicine, John Radcliffe Hospital, Oxford, United Kingdom OX2 6HE