Wangai, A.-M., S. Waa, M. Wangai, E. Amayo, and O. Olunya. “Late-Onset Visual Loss in Osteopetrosis”. Sultan Qaboos University Medical Journal, vol. 11, no. 3, Dec. 2011, pp. 407-11, https://journals.squ.edu.om/index.php/squmj/article/view/1610.