?:authorAffiliation
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[\'Massachusetts General Hospital, Boston, Massachusetts, United States of America.\', \'Harvard Medical School, Boston, Massachusetts, United States of America.\', \'Africa Health Research Institute, KwaZulu-Natal, South Africa.\', \'University College London, London, United Kingdom.\', \'MRC/Wits Agincourt Unit, Rural Public Health and Health Transitions Research Unit, University of the Witwatersrand, Johannesburg, South Africa.\', \'Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America.\', \'Harvard Center for Population and Development Studies, Cambridge, Massachusetts, United States of America.\', \'Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America.\', \'Department of Medical Ethics and Health Policy, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America.\', \'Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America.\']
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