Text and Data Mining valid from 2018-08-16
Received: 10 April 2018
Accepted: 4 August 2018
First Online: 16 August 2018
Ethics approval and consent to participate
: The study was conducted according to the guidelines laid down in the Declaration of Helsinki. Ethical approval was obtained from the Health Research and Ethics Committee of the Lagos University Teaching Hospital (Ref No: ADM/DCST/HREC/APP/179 and Lagos State University Teaching Hospital (Ref No: LREC/10/06/630). Informed written consent was obtained from all students as well as parental consent from those who were younger than 18 years of age before conducting the study, and confidentiality was maintained.
: Not applicable
: The authors declare that they have no competing interests.
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