1. Department of Surgery; Stanford University; Stanford CA
2. Department of Internal Medicine; University of Iowa; Iowa City IA
3. Department of Surgery; UCSF San Francisco CA
4. Department of Surgery; Massachusetts General Hospital; Boston MA
5. New England Organ Bank; Boston MA
6. Department of Mathematics; U.S. Naval Academy; Annapolis MD
7. United Network of Organ Sharing; Richmond VA
8. Department of Medicine; Ottawa Hospital; Ottawa ON
9. Department of Medicine; Johns Hopkins University School of Medicine; Baltimore MD
10. Department of Internal Medicine; University of Michigan; Ann Arbor MI
11. Stanford Hospital and Clinics; Palo Alto CA
12. Department of Internal Medicine; University of Manitoba; Winnipeg MB
13. Department of Pathology; University of California Los Angeles; Los Angeles CA
14. Department of Urology & Pathology; University of Toledo Medical Center; Toledo OH
15. Transplant Institute; Beth Israel Deaconess Medical School; Boston MA
16. Department of Surgery; Johns Hopkins University; Baltimore MD
17. Department of Surgery; Cornell University; New York NY
18. Department of Surgery; Brigham & Women's Hospital Harvard University; Boston MA
19. Department of Surgery; Vanderbilt University Medical Center; Nashville TN