Institution
- National Research Council (U.S.)6
- New York University Medical Center6
- Syracuse University6
- United States. Department of Defense6
- University College, London6
- University of California, Irvine6
- University of California, Los Angeles. School of Medicine6
- University of Delaware6
- University of Virginia6
- Abbott Laboratories5
- Carnegie Institution of Washington5
- Children's Hospital (Boston, Mass.)5
- Dartmouth College5
- George Washington University5
- Georgia Institute of Technology5
- Indiana University, Bloomington5
- Kellex Corporation5
- Monsanto Company5
- North Carolina State University5
- Reed College (Portland, Or.)5