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doi: 10.1016/j.bbi.2024.03.019 [DOI] [PubMed] [Google Scholar] 94.Islam F, Imran A, Nosheen F, Fatima M, Arshad MU, Afzaal M, et al

It is not uncommon for strict vegans to suffer from a B12 deficiency
Life Sciences 51(13):1049-1056. [doi.org]

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