TUMOUR-RELATED ENZYME ALTERATIONS IN THE CLEAR CELL TYPE OF HUMAN RENAL CELL CARCINOMA IDENTIFIED BY TWO-DIMENSIONAL GEL ELECTROPHORESIS ArticleZimmermann Uwe, Protzel Chris, Scharf Christian, Klebingat Klaus-Jurgen, Walther Reinhard, Balabanov StefanEuropean Journal of Biochemistry. Vol. 268. 2001. P.. 5977-5980