YILDIRIM, Sadık, Fevzi KABUKÇUOĞLU, Ali BAYKAN, and Ali Burak ÇULHAOĞLU. “Primary Retroperitoneal Ekstraadrenal Maligant Paraganglioma”. Turkish Journal of Gastroenterology 8, no. 3 (January 3, 1997): 364–366. Accessed January 1, 2026. https://www.turkjgastroenterol.org/index.php/tjg/article/view/820.