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Inject the Medication: Pinch the skin around the cleaned injection site to create a firm area if instructed
Participants were randomly assigned to receive intramuscular, or into-the-muscle, injections of one of two doses of methylcobalamin (25 or 50 mg), or a placebo, twice a week for 3.5 years
Selecting the Appropriate Formulation Choosing the right B12 formulation depends on several factors
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