Tuesday, November 20, 2007

"Vitamin [B.sub.12] deficiency is thought to be a continuum with five stages.[9] These stages include: I, normality; II, negative vitamin [B.sub.12] balance; 111, vitamin [B.sub.12] depletion with possible clinical signs and symptoms (reversible neuropsychiatric findings); IV, vitamin [B.sub.12]-deficient erythropoiesis with possible clinical signs or symptoms (potentially reversible neuropsychologic symptoms); and V, vitamin [B.sub.12] deficiency anemia with probable clinical signs and symptoms, including irreversible lateral column involvement."
http://findarticles.com/p/articles/mi_m0689/is_n6_v41/ai_17913640

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