1. Penn Medical Laboratory, Medlantic Research Institute Washington, DC
2. Novo Nordisk Laboratories, Novo Nordisk A/S Bagsvaerd
3. Lilly Research Laboratories, Eli Lilly Indianapolis, Indiana
4. Steno Diabetes Center Gentofte, Denmark
5. Linco Research St. Louis, Missouri
6. Department of Pediatrics, University of Missouri Columbia
7. University of Texas Health Sciences Center San Antonio, Texas
8. Cambridge University Cambridge, U.K.
9. Department of Pathology, University of Pennsylvania Philadelphia, Pennsylvania
10. Department of Medicine, University of Chicago Hospital and Clinics Chicago, Illinois
11. Department of Medicine, University of Washington Seattle, Washington
12. Department of Medicine, University of Miami Miami, Florida