1. Oklahoma State University, Stillwater, OK, USA
2. University of South Florida, Tampa, FL, USA
3. World Health Organization, Geneva, Switzerland
4. University of New South Wales, Sydney, Australia
5. University of Notre Dame, Notre Dame, IN, USA
6. Stony Brook University, Stony Brook, NY, USA
7. Columbia University, New York, NY, USA
8. Purdue University, West Lafayette, IN, USA
9. University of California, Los Angeles, CA, USA
10. University of Georgia, Athens, GA, USA
11. University of Michigan, Ann Arbor, MI, USA
12. Northwestern University, Evanston, IL, USA
13. University of Missouri, Columbia, MO, USA