Serum gamma glutamyl-transferase is a sensitive but unspecific marker of metastatic renal cell carcinoma. - Simic, Tatjana; Dragicevic, Dejan; Savic-Radojevic, Ana; Cimbaljevic, Slavica; Tulic, Cane; Mimic-Oka, Jasmina (International Journal of Urology, 2007)