1. School of Public Health and Medical Statistics Section, University of
Alabama at Birmingham, Birmingham, Alabama, USA
2. Caribbean Medical Center, Ministry of Health, Trinidad and Tobago,
West Indies
3. Special Programme on Sexually Transmitted Infections, Caribbean
Epidemiological Centre (CAREC/PAHO/WHO), Trinidad and Tobago, West Indies
4. School of Medicine, University of Alabama at Birmingham, Birmingham,
Alabama, USA
5. Public Health Intelligence Unit, Trinidad and Tobago, West
Indies