M. A. Naz, M. Farooq, M. K. Niazi, and A. Arain, “USHER SYNDROME – CASE REPORT OF TWO SIBLINGS: Usher Syndrome”, Pak Armed Forces Med J, vol. 59, no. 3, pp. 373–75, Sep. 2009, Accessed: Jul. 27, 2024. [Online]. Available: https://pafmj.org/PAFMJ/article/view/1834