Prevention of toxicity of amethopterin for sarcoma-180 cells in tissue culture.
D000818:Animals; D035843:Biomedical Research; D004171:Diploidy; D005493:Folic Acid Antagonists / Q000494:pharmacology*; D008727:Methotrexate; D012107:Research Design; D012513:Sarcoma, Experimental
D005493:Folic Acid Antagonists; D008727:Methotrexate
FOLIC ACID ANTAGONISTS/effects; SARCOMA/experimental