1. Department of Public Health, Semmelweis University, Budapest,
Hungary
2. Center for AIDS Intervention Research (CAIR), Department of Psychiatry
and Behavioral Medicine, Medical College of Wisconsin, 2071 N. Summit Avenue,
Milwaukee WI 53202, USA and Faculty of Sociology, St Petersburg State University,
St Petersburg, Russia
3. Center for AIDS Intervention Research (CAIR), Department of Psychiatry
and Behavioral Medicine, Medical College of Wisconsin, 2071 N. Summit Avenue,
Milwaukee WI 53202, USA
4. Gay and Lesbian Rights Organization, 'Hatter', Budapest, Hungary