1. Institute for Sex Research and Forensic Psychiatry, University Medical Center Ham-burg-Eppendorf, Hamburg, Germany
2. School of Psychology, University of Ottawa, Ottawa, Canada
3. Department of Psychiatry, University of Cape Town and Groote Schuur Hospital, Cape Town, South Africa
4. Department of Health Statistics and Information Systems, World Health Organization, Geneva, Switzerland
5. Department of Mental Health and Substance Abuse, World Health Organization, Geneva, Switzerland
6. Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA