1. Departments of Diabetes and Endocrinology (F.J., A.M.A., J.P.V.), Royal Liverpool University Hospital, Liverpool L7 8XP, United Kingdom
2. Department of Clinical Biochemistry and Metabolic Medicine (B.Y.C., B.H.D., W.D.F.), Royal Liverpool University Hospital, Liverpool L69 3GA, United Kingdom
3. Department of Nuclear Medicine (S.V.), Royal Liverpool University Hospital, Liverpool L7 8XP, United Kingdom
4. Department of Human Bone Cell Research Group (J.A.G.), Department of Human Anatomy and Cell Biology, University of Liverpool, Liverpool L69 3GE, United Kingdom