M.A. Booi, S.M. Baloyi,. “Prevalence of Congenital Birth Defects (CBD) and Associated Risk-Factors of Babies Delivered at Universitas Academic Hospital in Bloemfontein South Africa: 2013-2017”. Obstetrics and Gynaecology Forum 32, no. 03 (November 1, 2022): 5–8. Accessed September 11, 2025. http://obstetricsandgynaecologyforum.com/index.php/ogf/article/view/16.