1004 PREDICTION OF SIGNIFICANT DOWNGRADING (GLEASON-SCORE ≤ 3+4) BETWEEN BIOPSY SPECIMENS AND FINAL PATHOLOGY IN A CONTEMPORARY RADICAL PROSTATECTOMY COHORT OF 321 MEN WITH BIOPSY HIGH GRADE (≥ 4+4) ProsTaTe cancer - Hansen, J.; Isbarn, H.; Chun, F.K.H.; Kluth, L.A.; Sauter, G.; Graefen, M.; Steuber, T. (European Urology Supplements, 2011)