1. Boston University School of Public Health, Boston, Massachusetts.
2. Department of Medicine, University of California at Los Angeles, UCLA School of Medicine, Los Angeles, California.
3. Montefiore Medical Center/Albert Einstein College of Medicine, Division of General Internal Medicine, Bronx, New York.
4. Health Resources and Services Administration, HIV/AIDS Bureau, Rockville, Maryland.
5. Pediatric Prevention Research Center, Wayne State University, Detroit, Michigan.
6. Community Health Research Initiative, Virginia Commonwealth University, Richmond, Virginia.
7. City College Medical School, City University of New York, New York, New York.
8. Division of General Internal Medicine, University of California at Los Angeles, UCLA School of Medicine, Los Angeles, California.