title: Influence of dosage schedule on the biological characteristics of N-nitrosomethylurea-induced rat mammary tumors.
mesh_terms: D000818:Animals; D002369:Castration; D005260:Female; D008325:Mammary Neoplasms, Experimental / Q000139:chemically induced* / Q000378:metabolism / Q000628:therapy; D008770:Methylnitrosourea / Q000633:toxicity*; D009607:Nitrosourea Compounds / Q000633:toxicity*; D051381:Rats; D011960:Receptors, Estrogen; D012075:Remission, Spontaneous; D013629:Tamoxifen / Q000627:therapeutic use; D013997:Time Factors
chemical_list: D009607:Nitrosourea Compounds; D011960:Receptors, Estrogen; D013629:Tamoxifen; D008770:Methylnitrosourea