Received: 14 March 2019
Accepted: 16 July 2019
First Online: 22 July 2019
Ethics approval and consent to participate
: The ethical approval for the study was obtained from the Research and Ethics Committee of Federal Teaching Hospital Abakaliki, Ebonyi State Nigeria with the reference number FETHA/REC/Vol1/2015/232 dated 23rd February 2015. We also obtained written informed consent from the participants.
: Not applicable.
: The authors declare that they have no competing interests.