Özer, Cevahir, Mehmet Resit Gören, Tulga Egilmez, and Nebil Bal. 2014. “Papillary Renal Cell Carcinoma Within a Renal Oncocytoma: Case Report of Very Rare Coexistence”. Canadian Urological Association Journal 8 (11-12):e928-30. https://doi.org/10.5489/cuaj.1963.