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"Association of biochemical B 1 2 deficiency with metformin therapy and vitamin B 1 2 supplements: the National Health and Nutrition Examination Survey, 19992006"
References Pickart, L., Vasquez-Soltero, J
Anaphylactic reaction after injection of vitamin B12 Heres a case of two female patients with pernicious anemia who had adverse reactions to B12 shots (hydroxocobalamin)
Active metabolite characterisation whether smaller peptide fragments retain biological activity
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