1. Rush Presbyterian St. Luke's Medical Center, Section of Infectious Diseases, Chicago, Illinois
2. Glaxo Wellcome, Research Triangle Park, North Carolina
3. Institute for HIV Research and Treatment, Davies Medical Center, San Francisco, California
4. Urgent Care Center, Broward General Medical Center, Ft. Lauderdale, Florida
5. Section of Infectious Disease, Beth Israel Medical Center, New York
6. Southwest Infectious Disease Associates, Dallas, Texas
7. Clinica de Immunologia, Hospital Regional de Ponce, Puerto Rico