ViewpointOnline first100984Open access Affiliations & Notes aInstitute for Global Health, University College London, London, UK bCenter for Learning and Childhood Development, Accra, Ghana cOakland University, Rochester, MI, USA dIndian Institute for Human Settlements, Bengaluru, Karnataka, India eSchool of Public Health, University of the Western Cape, Bellville, South Africa fHealth Systems Research Unit, South African Medical Research Council, Cape Town, South Africa gInstitute for Life...