1. Department of Endocrinology, St. Bartholomew’s and the Royal London School of Medicine and Dentistry (A.S., M.P.P., J.P.M., J.M.B.), West Smithfield, London, United Kingdom EC1A 7BE
2. Department of Hematology, LRF Center for Adult Leukemia (J.L.L.), London, United Kingdom W12 0NN
3. ICSM Molecular Endocrinology Group, Division of Medicine and Medical Research Council Clinical Sciences Center (G.R.W.), Imperial College School of Medicine, Hammersmith Hospital, London, United Kingdom W12 0NN