Funding for this research was provided by:
Bill and Melinda Gates Foundation
United Nations Population Fund
Received: 23 July 2018
Accepted: 16 June 2020
First Online: 24 June 2020
Ethics approval and consent to participate
: Data collection for this research was approved by Tulane University Institutional Review Board (16 - #911338), as well as by the Ethics Committee of the Kinshasa School of Public Health (#ESP/CE/071/2016). All participants provided written informed consent to participate in the study.
: Not applicable.
: The authors declare that they have no competing interests.