1. Atypical carcinoma of Kidney, possibly originating from collecting duct epithelium;Cromie;Urology,1979
2. Tumors of the kidney, renal pelvis and ureter;Bennington,1975
3. Surgical Pathology;Coulson,1978
4. Mostofi FK, and Sobin LH: Histological Typing of Kidney Tumors, International Histological Classification of Tumors #25, Geneva, WHO (in press).