1. Division of HIV/STI Epidemiology, Evaluation, and Partner Services, New York State Department of Health, Albany, New York, USA.
2. Division of HIV and Hepatitis Health care, New York State Department of Health, AIDS Institute, Albany, New York, USA.
3. Office of Program Evaluation and Research, New York State Department of Health, AIDS Institute, Albany, New York, USA.
4. University at Albany School of Public Health, Albany, New York, USA