1. Eli Lilly & Co. (A.F.A., D.V.), 50019 Florence, Italy
2. Lilly Research Centre, Windlesham (P.C.B.), Surrey GU20 6PH, United Kingdom
3. Garvan Institute of Medical Research (K.K.Y.H.), Sydney NSW 2010, Australia
4. Hospital Santa Creu i Sant Pau (S.M.W.), 08025 Barcelona, Spain
5. Department of Medicine, Northern General Hospital (R.J.R.), Sheffield S5 7AU, United Kingdom
6. Ludwig-Maximilians-Universität (C.J.S.), München 80336, Germany
7. Laboratorium voor Experimentele Geneeskunde en Endocrinologie (R.B.), 3000 Leuven, Belgium
8. Eli Lilly & Co. (B.C., K.S.), Indianapolis, Indiana 46285
9. Ziekenhuis Dijkzigt (S.W.J.L.), 3015 GD Rotterdam, The Netherlands