Relation between LC50 values of forodesine/dGuo, ara-G and ara-C in T-ALL. Relationship between (A) ara-G and forodesine/dGuo LC50 values, (B) between ara-C and forodesine/dGuo LC50 values, and (C) between ara-G and ara-C LC50 values. LC50 values for ara-G and ara-C were available for 28 and 21 T-ALL patients, respectively.