J Clin Endocrinol Metab 2014 Jan 20;99(1):E127-31. Epub 2013 Dec 20.
Oxford Centre for Diabetes, Endocrinology, and Metabolism (M.J.S., F.K.K., O.J.B., S.C.L.G.) and Oxford National Institute for Health Research Biomedical Research Centre (F.K.K., S.C.L.G.), Churchill Hospital, Headington, Oxford OX3 7LJ, United Kingdom; and Centre for Endocrinology, Diabetes, and Metabolism (P.R.N., L.E.J., C.E.H., J.A.F.), School of Clinical and Experimental Medicine, College of Medical and Dental Science, Institute of Biomedical Research, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.