1. School of Social Work, University of Washington, Seattle, Washington.
2. School of Social Service Administration, University of Chicago, Chicago, Illinois.
3. Department of Bioethics and Humanities, University of Washington, Seattle, Washington.
4. School of Nursing, Yale University, New Haven, Connecticut.
5. Department of Psychology, University of Washington, Seattle, Washington.
6. Beijing Ditan Hospital, Capital Medical University, Beijing, China.
7. Division of Treatment and Care, National Center for AIDS/STD Control and Prevention, Chinese Centers for Disease Control, Beijing, China.