Received: 23 January 2018
Accepted: 30 May 2019
First Online: 13 June 2019
Ethics approval and consent to participate
: Approval for this study was given by the University of Ibadan/University College Hospital (UI/UCH) Institution Review Board (IRB) and Ethics Review committee. Since data from patients’ records was used, the IRB/Ethics committee waived the need for a written /signed consent from study participants.
: Not applicable. The manuscript does not include details, images or video of individual patient.
: The authors declare that they have no competing interests.