1. University of Colorado; Aurora CO USA
2. George Washington University; Rockville MD USA
3. MedStar Health Research Institute; Hyattsville MD USA
4. University of California; San Diego La Jolla CA USA
5. Colorado School of Public Health; Aurora CO USA
6. University of Tennessee; Memphis TN USA
7. VA Puget Sound Health Care System and University of Washington; Seattle WA USA
8. Indiana University; Indianapolis IN USA
9. National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK); Phoenix AZ USA