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Grading of urothelial carcinoma of the upper urinary tract according to the World Health Organization/International Society of Urological Pathology classification from 2004 is a valuable tool when considering whether a patient is suitable for endoscopic treatment.
Almås B, Halvorsen OJ, Gjengstø P, Ulvik Ø, Beisland C. Almås B, et al. Scand J Urol. 2016 Aug;50(4):298-304. doi: 10.3109/21681805.2016.1144220. Epub 2016 Feb 29. Scand J Urol. 2016. PMID: 26926878
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