Institution
- United States. Department of Defense1
- United States. Office of Science and Technology1
- Université de Genève1
- University of Birmingham1
- University of California, Berkeley3
- University of California, Los Angeles1
- University of California, Santa Barbara2
- University of Cambridge1
- University of Chicago1
- University of Cincinnati1
- University of Nebraska1
- University of New Zealand1
- University of Pennsylvania4
- University of Pittsburgh1
- University of St. Andrews1
- University of Texas at Arlington1
- University of Texas at Austin1
- University of Utah1
- University of Wisconsin--Madison1
- Yale University1