Funding for this research was provided by:
International Development Research Centre (108040-001)
Received: 18 April 2018
Accepted: 14 November 2018
First Online: 22 November 2018
Ethics approval and consent to participate
: The study was approved by the University of Ibadan/ University College Hospital Ibadan Ethical Review Committee and was conducted in strict compliance with the guidelines specified by the Committee. All participants in the study gave written informed consent after the objectives of the study had been explained to them.
: Not applicable.
: The authors declare that they have no competing interests.
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