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insert the needle at 4590 into subcutaneous tissue [14]
A single injection takes only a few minutes, making it one of the most time-efficient supplementation methods available
25 Patients diagnosed with vitamin B 12 deficiency whose history and physical examination do not suggest an obvious dietary or malabsorptive etiology should be tested for pernicious anemia with anti-intrinsic factor antibodies (positive predictive value = 95%), particularly if other autoimmune disorders are present
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These are laboratory research observations only and do not represent established effects in humans or animals
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