1. University of South Carolina Columbia, South Carolina
2. Harvard Medical School Boston, Massachusetts
3. University of Missouri–Columbia Bethesda, Maryland
4. National Institute of Arthritis, Diabetes, Digestive and Kidney Diseases Bethesda, Maryland
5. Hospital of University of Pennsylvania Philadelphia, Pennsylvania
6. Sunsum Medical Research Foundation Santa Barbara, California
7. Laboratorium fur Biochemie ETH Zentrum Zurich, Switzerland