1. Endocrinology and Diabetes Unit (I.A.H., M.F., S.H., F.H., M.S., S.R.M., B.A.), Department of Medicine, University of Wuerzburg, D-97080 Wuerzburg, Germany
2. School of Animal and Microbial Sciences (A.B.B.), The University of Reading, Whiteknights, Reading, Berkshire RG6 6AJ, United Kingdom