Received: 13 May 2019
Accepted: 27 June 2019
First Online: 4 July 2019
Ethics approval and consent to participate
: Ethical approval for this study was from the St. Francis Hospital Nsambya Research Ethics Committee (REC); reference number 020. Individual written consent was obtained from every participant before enrolment into the study.
: Not applicable.
: The authors declare that they have no competing interests.