About the Authors

Julia Hussein


Affiliation Immpact, University of Aberdeen, Aberdeen, Scotland

Lovney Kanguru

Affiliation Immpact, University of Aberdeen, Aberdeen, Scotland

Margaret Astin

Affiliation University of Bristol, Bristol, England

Stephen Munjanja

Affiliation University of Zimbabwe, Harare, Zimbabwe

Competing Interests

SM and JH were authors on some of the studies considered for inclusion in this systematic review and were involved in the implementation of the interventions. They were not involved in assessment of their studies. All other authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JH MA. Performed the experiments: JH LK MA SM. Analyzed the data: JH LK MA SM. Contributed reagents/materials/analysis tools: JH LK MA. Wrote the first draft of the manuscript: JH LK. Contributed to the writing of the manuscript: JH LK MA SM. ICMJE criteria for authorship read and met: JH LK MA SM. Agree with manuscript results and conclusions: JH LK MA SM.