|Up a level|
Hafner, C. and Knuechel, R. and Zanardo, L. and Dietmaier, W. and Blaszyk, H. and Cheville, J. and Hofstaedter, Ferdinand and Hartmann, A. (2001) Evidence for oligoclonality and tumor spread by intraluminal seeding in multifocal urothelial carcinomas of the upper and lower urinary tract. Oncogene 20 (35), pp. 4910-4915.