?:authorAffiliation
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[\'Cochrane South Africa, South African Medical Research Council, Cape Town, South Africa.\', \'School of Public Health and Family Medicine, Faculty of Health Sciences, University of Cape Town, South Africa.\', \'Department of Epidemiology, University of Washington School of Public Health, Seattle, Washington, USA.\', \'Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.\']
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