Institution
- United States. Food and Drug Administration3
- United States. Indian Health Service1
- United States. National Bureau of Standards2
- United States. War Department1
- Universität Basel1
- University of Bath1
- University of California, Berkeley2
- University of California, Irvine1
- University of California, Los Angeles2
- University of California, Los Angeles. School of Medicine1
- University of California, San Francisco2
- University of California, Santa Barbara1
- University of Cambridge2
- University of Cape Town1
- University of Florida1
- University of Illinois at Urbana-Champaign2
- University of Kent at Canterbury1
- University of Leeds1
- University of Maryland, College Park1
- University of Melbourne1