1. University of San Francisco San Francisco California
2. Johns Hopkins Bloomberg School of Public Health Baltimore Maryland
3. University of California, San Diego San Diego California
4. Veterans Administration Medical Center Portland Oregon
5. Kaiser Permanente Berkeley California
6. University of California, San Francisco San Francisco California
7. Centro de Especialidades Medicas de Siguatepeque Comayagua Honduras
8. In Private Practice Lafayette California
9. Stanford University Stanford California