Sariyuce, Oguzhan, Ozcan Ozsan, Bahar Muezzinoglu, Semih Ozkan, Tayfun Gurpinar, and Engin Aydin. “Benign Retroperitoneal Schwannoma : A Rare Cause of Flank Pain”. Annals of Medical Research 5, no. 1 (May 25, 2021): 0073–0077. Accessed May 18, 2024. http://www.annalsmedres.org/index.php/aomr/article/view/2654.