Received: 18 April 2018
Accepted: 17 June 2019
First Online: 27 June 2019
Ethics approval and consent to participate
: Ethical approval was obtained from the Human Research Ethics committee (HREC) of Lagos University Teaching Hospital (Protocol number: ADM/DCST/HREC/APP/1061; approval dates 08-07-2016 to 08-07-2017.). The study adhered to the Helsinki declaration. Approval was obtained from the LGA Medical Administrator prior to commencement of research activities. Informed consent was obtained in writing from eligible MCHWs.
: Not applicable.
: The authors declare that they have no competing interests.