George Asha S, Scott Kerry, Sarriot Eric, Kanjilal Barun, Peters David H
School of Public Health, University of the Western Cape, Cape Town, 7535, South Africa.
Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA.
BMC Health Serv Res. 2016 Nov 15;16(Suppl 7):631. doi: 10.1186/s12913-016-1859-7.