Analysis of N-ethyl-N-nitrosourea-induced brain carcinogenesis by sequential culturing during the latent period. I. Morphology and tumorigenicity of the cultured cells and their growth in agar.
D000818:Animals; D001932:Brain Neoplasms / Q000139:chemically induced / Q000473:pathology*; D002478:Cells, Cultured; D005038:Ethylnitrosourea; D005260:Female; D008431:Maternal-Fetal Exchange; D009374:Neoplasms, Experimental / Q000473:pathology; D009607:Nitrosourea Compounds; D011230:Precancerous Conditions / Q000139:chemically induced / Q000473:pathology*; D011247:Pregnancy; D051381:Rats; D011919:Rats, Inbred Strains; D013997:Time Factors
D009607:Nitrosourea Compounds; D005038:Ethylnitrosourea