[Severe pernicious anemia megaloblastoses in old age].
D000740:Anemia; D000748:Anemia, Macrocytic; D000752:Anemia, Pernicious; D045728:Corrinoids; D006801:Humans; D014805:Vitamin B 12
D045728:Corrinoids; D014805:Vitamin B 12
ANEMIA, MACROCYTIC; ANEMIA, PERNICIOUS; VITAMIN B 12