PLoS ONE, 7(7), e42357
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For long-term studies, this can sometimes present practical challenges, especially if high frequency of administration is required
If you suspect a deficiency, consult your GP for appropriate testing, which typically includes a full blood count, serum B12, and folate levels
It is recommended that you enjoy vitamin B12 rich animal foods in moderation
For more information about the testing, feasibility, scientific acceptability, meaningfulness, and validity of the Emergency Care Access & Timeliness eCQM, we refer readers to the Feasibility and Scientific Acceptability sections of the Emergency Care Access & Timeliness eCQM listing on the Partnership for Quality Measurement website at