Studies on the toxicity of amethopterin and tetrahydroamethopterin in chicks.
D000818:Animals; D002645:Chickens; D005493:Folic Acid Antagonists / Q000633:toxicity*; D006801:Humans; D008727:Methotrexate
D005493:Folic Acid Antagonists; D008727:Methotrexate
FOLIC ACID ANTAGONISTS/toxicology