Hayford, Frank Ekow Atta http://orcid.org/0000-0001-5950-2935
Dolman, Robin Claire
Blaauw, Renee
Nienaber, Arista
Smuts, Cornelius Mattheus
Malan, Linda
Ricci, Cristian
Article History
Received: 27 March 2020
Accepted: 17 August 2020
First Online: 26 August 2020
Ethics approval and consent to participate
: Each enrolled trial was approved by the corresponding Institutional Ethical Committee for the primary trials. Thus, approval or consent of participants was not required for any of the studies included in this systematic review and meta-analysis.
: Not applicable<b>.</b>
: The authors declare that they have no competing interests.