1. Johns Hopkins Univ., Baltimore, MD (United States)
2. Stanford Univ., CA (United States)
3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
4. Univ. of Colorado, Boulder, CO (United States)
5. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
6. Brookhaven National Lab. (BNL), Upton, NY (United States)
7. Univ. of California, San Diego, CA (United States)
8. Georgetown Univ., Washington, DC (United States)
9. Texas A & M Univ., College Station, TX (United States)
10. Univ. of Texas, Austin, TX (United States)
11. Univ. of Illinois at Urbana-Champaign, IL (United States)
12. Harvard Univ., Cambridge, MA (United States)
13. Pennsylvania State Univ., University Park, PA (United States)
14. Univ. of California, Santa Barbara, CA (United States)
15. Dept. of Energy (DOE), Washington DC (United States). Office of Science. Basic Energy Sciences
16. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Dept. of Energy (DOE), Washington DC (United States). Office of Science. Basic Energy Sciences
17. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)