Mathews, Gerard Jason, et al. “VAN WYK-GRUMBACH SYNDROME: A CHILD WITH MENSTRUATION”. Journal of the ASEAN Federation of Endocrine Societies, vol. 38, no. S2, July 2023, pp. 55-56, https://asean-endocrinejournal.org/index.php/JAFES/article/view/3895.