Received: 17 August 2017
Accepted: 9 January 2018
First Online: 26 January 2018
Ethics approval and consent to participate
: The study received ethical approval from the Institutional Review Board of the Korle-Bu Teaching Hospital (KBTH-IRB/005/2015).
: Not applicable. This study does not contain any individual persons data. Only hospital folders were reviewed in this study.
: The authors declare no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.