1. Alpert Medical School of Brown University, Providence, RI, United States
2. Rhode Island Hospital, Providence, RI, United States
3. Virginia Commonwealth University, Richmond, VA 23284, United States
4. University of Rhode Island, Kingston, RI, United States
5. Independent Consultant, Mt Shasta, CA
6. Wayne State University, Detroit, MI, United States
7. Brown University, Providence, RI, United States
8. San Franisco VA Health Care System, San Francisco, CA, United States
9. The University of California, San Francisco, San Francisco, CA, United States