Sharma, Rashim, Sudeep Khera, Arvind Sinha, and Taruna Yadav. “Pure Yolk Sac Tumor of Sacrococcygeal Region”. Autopsy and Case Reports 11 (August 25, 2021): e2021287. Accessed June 26, 2024. https://journals.usp.br/autopsy/article/view/189973.