Further observations on the site of action of amethopterin.
D005492:Folic Acid; D006801:Humans; D002955:Leucovorin; D008727:Methotrexate
D005492:Folic Acid; D002955:Leucovorin; D008727:Methotrexate
CITROVORUM FACTOR; FOLIC ACID; METHOTREXATE