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PubMed 31
For any research protocol to have integrity, it must begin with a rigorous assessment of these risk factors
[4] Why Vitamin B12 Can Cause Gastrointestinal Symptoms The mechanisms underlying gastrointestinal side effects from vitamin B12 supplementation are not fully established, but several factors may contribute to stomach discomfort in susceptible individuals
Always verify the required diluent using the manufacturers instructions or advice from a pharmacist
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