Vitamin B12 deficiency in the megaloblastic anemias.
D000740:Anemia / Q000175:diagnosis*; D000749:Anemia, Megaloblastic; D001706:Biopsy; D003937:Diagnosis, Differential; D006801:Humans; D013270:Stomach; D014805:Vitamin B 12 / Q000378:metabolism*; D014806:Vitamin B 12 Deficiency
D014805:Vitamin B 12
ANEMIA/differential diagnosis; BIOPSY; STOMACH; VITAMIN B12/metabolism