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1. William Beaumont Hospital, 2. University of Alabama at Birmingham, 3. New England Research Institutes, 4. Loyola University, 5. University of Texas Southwestern Medical Center, 6. University of California at San Diego, 7. University of Texas San Antonio, 8. The Cleveland Clinic, 9. Duke University, 10. University of Maryland Baltimore, 11. University of Utah, 12. University of Pittsburgh
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