1. HIV Center for Clinical and Behavioral Studies, Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, New York.
2. New York State Psychiatric Institute, New York, New York.
3. Netherlands Institute of Mental Health and Addiction, Utrecht, The Netherlands.
4. Department of Sociomedical Sciences, Mailman School of Public Health, Columbia University, New York, New York.
5. The Netherlands Institute for Social Research, The Hague, The Netherlands.