N. . Mat Daud, F. S. . Mohamad Isa, J. . Ismail, . N. A. . Kamal Nor, A. . Yahya, and . B. . Ishak, “DOWN SYNDROME: WHAT ARE THE POSSIBLE RISK FACTORS OF OCULAR ANOMALIES?”, Inter. J. All. Heal. Sci., vol. 5, no. 3, p. 2251, Jun. 2021.