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Pernicious anemia
Pronunciation
Definition 1
A type of anemia (low red blood cell count) caused by the body's inability to absorb vitamin B12. (NCI Dictionary)
Definition 2
Megaloblastic anemia caused by vitamin B-12 deficiency due to impaired absorption. The impaired absorption of vitamin B-12 is secondary to atrophic gastritis and loss of gastric parietal cells. (NCI Thesaurus)
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