1. Veterans Administration Hospital (VAH), Minneapolis, Minnesota
2. VAH, Des Moines, Iowa
3. VAH, Wadsworth, Kansas
4. VAR, Louisville, Kentucky
5. VAH, Long Beach, California
6. VAH, Minneapolis, Minnesota
7. VAH, Oakland, California
8. National Institutes of Health, Bethesda, Maryland
9. VAH, Cincinnati, Ohio
10. VAH, Atlanta, Georgia
11. VAH, Portland, Oregon
12. VAH, Hines, Illinois
13. VAH, Fort Howard, Maryland
14. Veterans Administration Central Office, Washington, D. C.
15. VAH, Syracuse, New York
16. VAH, East Orange, New Jersey
17. Armed Forces Institute of Pathology, Washington, D. C.
18. VAH, Louisville, Kentucky
19. VAH, Oklahoma City, Oklahoma
20. VAH, New York, New York