1. Department of Endocrinology (M.E., J.A.H.W.), Radcliffe Infirmary, Oxford, OX2 6HE, United Kingdom
2. Department of Paediatrics (D.B.D.), Addenbrooke’s Hospital, Cambridge, CB2 2QQ, United Kingdom
3. Department of Endocrinology (G.S.C.), Middlesex Hospital, London, W1N 8AA, United Kingdom