Funding for this research was provided by:
National Institute of Child Health and Human Development (NIHCD 1R01 HD075171)
Received: 5 August 2020
Accepted: 24 February 2021
First Online: 10 March 2021
: Approval to conduct the study was gained from the Institutional Review Board of the Ohio State University and the Ethical Committee of the Kinshasa School of Public Health. All participants provided written informed consent before participating in the study.
: Not applicable.
: The authors declare that they have no competing interests.