B 12  dependence of cell uptake of serum folate: an explanation for high serum folate and cell folate depletion in B 12  deficiency.
D000752:Anemia, Pernicious / Q000378:metabolism; D001853:Bone Marrow / Q000378:metabolism; D001854:Bone Marrow Cells; D005492:Folic Acid / Q000097:blood / Q000378:metabolism*; D005494:Folic Acid Deficiency / Q000378:metabolism; D006801:Humans; D013763:Tetrahydrofolates / Q000378:metabolism; D014316:Tritium; D014805:Vitamin B 12 / Q000502:physiology*; D014806:Vitamin B 12 Deficiency / Q000097:blood / Q000378:metabolism*
D013763:Tetrahydrofolates; D014316:Tritium; D005492:Folic Acid; D014805:Vitamin B 12