Funding for this research was provided by:
NICHD (1R01HD080465, 1R01HD074558)
Received: 22 May 2019
Accepted: 23 July 2019
First Online: 26 July 2019
Ethics approval and consent to participate
: Both MCH-ART and LACE were approved by the Columbia University Medical Center Institutional Review Board and the University of Cape Town Faculty of Health Sciences Human Research Ethics Committee. All participants provided a written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.