Funding for this research was provided by:
Department for International Development, UK Government (Grant ID – PO 6407)
Text and Data Mining valid from 2019-11-01
Received: 5 April 2019
Accepted: 20 September 2019
First Online: 1 November 2019
Ethics approval and consent to participate
: The ethical approvals for this study were obtained from the National Health Research Ethics Committee of Nigeria (NHREC) with assigned number NHREC/01/01/2007 and the Liverpool School of Tropical Medicine research ethics committee review board with assigned number LSTM REC 15-043RSa. All participants signed an informed consent form before they were allowed to participate in the study.
: Not applicable.
: The authors declare that they have no competing interests.