1. Department of Pathology, The University of the West Indies, Mona, Jamaica
2. Imperial Clinical Trials Unit, Imperial College London, Stadium House, 68 Wood Lane, London W12 7RH, UK
3. Department of Medicine, Family Medicine and Community Health, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
4. Department of Basic Medical Sciences, The University of the West Indies, Mona, Jamaica
5. Kingston Public Hospital, Kingston, Jamaica
6. Mona Information Technology, The University of the West Indies, Mona,Jamaica
7. Department of Medicine, The University of the West Indies, Mona Campus, Jamaica
8. Department of Community Health and Psychiatry, University of the West Indies, Mona, Jamaica