L. citrovorum factor in refractory anemia.
D000740:Anemia / Q000628:therapy*; D000753:Anemia, Refractory; D005492:Folic Acid / Q000031:analogs & derivatives; D002955:Leucovorin
D005492:Folic Acid; D002955:Leucovorin
ANEMIA/therapy; FOLIC ACID/derivatives