1. Pfizer; Andover Massachusetts
2. Pfizer; Collegeville Pennsylvania
3. Diabetes Research Centre; University of Leicester; Leicester UK
4. National Research Institute; Los Angeles California
5. University of Pavia and IRCCS Policlinico San Matteo Foundation; Pavia Italy
6. Pfizer Ltd; Tadworth UK
7. Merck & Co., Inc.; Kenilworth New Jersey
8. Pfizer; Paris France
9. University of Tennessee Health Sciences Center; Memphis Tennessee