the frequency and distribution of n-methyl-n'-nitro-n-nitrosoguanidine ( mnng ) -induced structural aberrations , i.e. , chromatid and chromosome gaps , breaks , and exchanges , were studied in fibroblasts from 16 patients with sarcoma , 15 with non-hodgkin 's lymphoma ( nhl ) , and 14 controls .
C0008545
chromatid
C0008633
chromosome