Affiliation: | 1.Department of Surgery, Radiology, Anaesthesia and Intensive Care; Section of Surgery, Division of Urology, The University of the West Indies, Kingston 7, Jamaica, West Indies;2.Department of Obstetrics and Gynaecology, The University of the West Indies, Kingston 7, Jamaica;3.National Public Health Laboratory, Slipe Pen Road, Kingston, Jamaica, West Indies |