in contrast to the results obtained by treatment with chloroethylnitrosoureas , sf-126 cells treated with nitrogen mustard are 7.6-fold more resistant to the cytotoxic effects , 2-fold more resistant to the induction of sister chromatid exchanges , and 3-fold more resistant to the induction of dna interstrand cross-links than are sf-188 cells .
C0037211
sister chromatid exchanges
C0007634
cells