Multifocality rather than tumor location is a prognostic factor in upper tract urothelial carcinoma

Andrew K. Williams, Wassim Kassouf, Joseph Chin, Ricardo Rendon, Niels Jacobsen, Adrian Fairey, Anil Kapoor, Peter Black, Louis Lacombe, Simon Tanguay, Alan So, Jean Baptiste Lattouf, David Bell, Yves Fradet, Fred Saad, Ed Matsumoto, Darrel Drachenberg, Ilias Cagiannos, Jonathan I. Izawa