the true positive rate of this determination in bladder tumor patients was 26/56 ( 46 % ) by total polyamine level , 21/56 ( 38 % ) , by putrescine level , 11/56 ( 56 % ) by spermidine level and 16/56 ( 29 % ) by spermine level .
C0034170
putrescine
C0037871
level