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10.1007/s10787-006-1531-7 [DOI] [PubMed] [Google Scholar] Sikiric P., Seiwerth S., Brcic L., Sever M., Klicek R., Radic B., et al C-Senior Size:100 mcg/ml - 1 box (10amp. x 1ml) Bacteriostatic Water 30mL | Laboratory Research Supply https://www.evexiasdenver.com/wp-content/uploads/2020/02/Figure-1-People-most-at-risk-of-B12-deficiency.png

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