Fatal polycythemia following pernicious anemia treated with vitamin B12.
D000740:Anemia; D000752:Anemia, Pernicious / Q000150:complications*; D006397:Hematinics; D006801:Humans; D011086:Polycythemia; D011087:Polycythemia Vera / Q000209:etiology*; D014805:Vitamin B 12 / Q000627:therapeutic use*
D006397:Hematinics; D014805:Vitamin B 12
ANEMIA, PERNICIOUS/complications; POLYCYTHEMIA VERA/etiology and pathogenesis; VITAMIN B12/therapeutic use