Ghafar, Nurul Fatehah Abdul, and Norafiza Zainuddin. “Non-Invasive Prenatal Testing Using Cell-Free Fetal DNA from Maternal Plasma: A Review”. INTERNATIONAL JOURNAL OF ALLIED HEALTH SCIENCES 1, no. 1 (September 16, 2017). Accessed April 18, 2024. https://journals.iium.edu.my/ijahs/index.php/IJAHS/article/view/79.