Taylor, K. S. (2018) “Primary Extragonadal Yolk Sac Tumor Arising from the Urachus: A Case Report with Literature Review”, Annals of Pathology and Laboratory Medicine. New Delhi, India, 5(3), pp. C59–64. Available at: https://pacificejournals.com/journal/index.php/apalm/article/view/apalm1832 (Accessed: 7 December 2025).