Monyeki, K., Monyeki, M., Brits, S., Kemper, H. and Makgae, P. 2009. Development and Tracking of Body Mass Index from Preschool Age into Adolescence in Rural South African Children: Ellisras Longitudinal Growth and Health Study. Journal of Health, Population and Nutrition. 26, 4 (Jan. 2009), 405–417. DOI:https://doi.org/10.3329/jhpn.v26i4.1882.