Klisiewicz, A., F. Raal, J. Paiker, and S. Nayler. “Case Report: Multiple Endocrine Neoplasia Type 2A”. Journal of Endocrinology, Metabolism and Diabetes of South Africa, vol. 13, no. 1, Jan. 2009, https://www.ajol.info/index.php/jemdsa/article/view/34709.