Received: 23 May 2018
Accepted: 11 July 2019
First Online: 18 July 2019
Ethics approval and consent to participate
: This study received ethical approval from the Ethics Committee of South–West Regional Health Authority and the University of the West Indies. Verbal or written consent from individual patients was not required in this retrospective study since all data was obtained exclusively from patient records without any identifiable patient information.
: Not applicable.
: The authors declare that they have no competing interests.