1. Case Western Reserve Univ. (United States)
2. Cardiff Univ. (United Kingdom)
3. The Univ. of Chicago (United States)
4. Univ. of Colorado at Boulder (United States)
5. National Institute of Standards and Technology (United States)
6. Argonne National Lab. (United States)
7. McGill Univ. (Canada)
8. Univ. of California, Berkeley (United States)
9. California Institute of Technology (United States)
10. Univ. of Arizona (United States)
11. Univ. of Michigan (United States)
12. Univ. of Minnesota (United States)
13. The School of the Art Institute of Chicago (United States)