About the Authors
- Babalwa Zani
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* E-mail: bzani@mrc.ac.za
Affiliation South African Cochrane Centre, Medical Research Council of South Africa, Cape Town, South Africa
- Elizabeth D. Pienaar
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Affiliation South African Cochrane Centre, Medical Research Council of South Africa, Cape Town, South Africa
- Joy Oliver
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Affiliation South African Cochrane Centre, Medical Research Council of South Africa, Cape Town, South Africa
- Nandi Siegfried
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Affiliations South African Cochrane Centre, Medical Research Council of South Africa, Cape Town, South Africa, Department of Public Health and Primary Care, University of Cape Town, Cape Town, South Africa
Competing Interests
Dr. Nandi Siegfried is an Academic Editor for PLoS One. The other authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: NS. Performed the experiments: BZ EP JO NS. Analyzed the data: BZ EP NS. Contributed reagents/materials/analysis tools: BZ EP JO NS. Wrote the paper: BZ. Edited the manuscript and provided intellectual input: BZ EP JO NS.