1. a Louisiana Office of Public Health , HIV/AIDS Program , New Orleans , LA , USA
2. b AIDS Survival Project , Atlanta , GA , USA
3. c Kansas City Free Health Clinic , Kansas City , MO , USA
4. d Virginia Commonwealth University , Richmond , VA , USA
5. e Health Services Center , Anniston , AL , USA
6. f Northrop Grumman Corporation and Centers for Disease Control and Prevention , Atlanta , GA , USA
7. g Centers for Disease; Control and Prevention, Division of HIV/AIDS Prevention , Atlanta , GA , USA