1. Centre for Endocrinology, Diabetes, and Metabolism (J.M.H., L.L.G., M.N., P.M.S., J.W.T.), Birmingham B15 2TH, United Kingdom
2. Institute of Biomedical Research, School of Clinical and Experimental Medicine, University of Birmingham, Edgbaston, Centre for Liver Research and National Institute for Health Research Liver Biomedical Research Unit (M.J.A.), Birmingham B15 2TH, United Kingdom
3. Wellcome Trust Clinical Research Facility (S.B.), Queen Elizabeth Hospital, Birmingham B15 2TT, United Kingdom
4. School of Sports and Exercise Sciences (J.Y., A.J.M.W.), University of Birmingham, Birmingham B15 2TH, United Kingdom