Ara, Cengiz, Sacit Coban, Eren Mecit, Dincer Ozgor, Sezai Yilmaz, and Vedat Kirimlioglu. “A Rare Cause of Retrorectal Cyst: Teratoma Containing Endometrial Tissue”. Annals of Medical Research 12, no. 1 (May 25, 2021): 0055–0057. Accessed May 18, 2024. http://www.annalsmedres.org/index.php/aomr/article/view/3079.