Shrestha, A., G. Gurung, J. Baral, and A. Rana. “Tetrology of Fallot Complicated by Pregnancy Induced Hypertension”. Nepal Journal of Obstetrics and Gynaecology, vol. 5, no. 2, July 2011, pp. 57-58, https://nepjol.info./index.php/NJOG/article/view/5084.