title: Study of the chromosomes of lymphocytes of patients treated with N-nitroso-N-methylurea.
mesh_terms: D000328:Adult; D002455:Cell Division / Q000187:drug effects; D002869:Chromosome Aberrations; D002875:Chromosomes / Q000187:drug effects*; D006801:Humans; D008214:Lymphocytes / Q000187:drug effects / Q000648:ultrastructure*; D008782:Methylurea Compounds / Q000494:pharmacology / Q000627:therapeutic use; D008875:Middle Aged; D009369:Neoplasms / Q000188:drug therapy; D009607:Nitrosourea Compounds / Q000494:pharmacology* / Q000627:therapeutic use
chemical_list: D008782:Methylurea Compounds; D009607:Nitrosourea Compounds