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The quality and source of the B12 solution can impact pricing, with FDA-compliant facilities potentially charging more due to strict quality control measures
They narrowed it down to 36 total studies
More recent evidence of its effectiveness in NDDs has led to guidelines and recommendations which emphasize behavioural management as the first line of intervention after medical reasons have been considered and treated or excluded [17] [20] [28] [37] - [43]
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