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Vitamin B12 is essential for healthy skin, hair and nails
They also carry the risks inherent to any surgical procedure, require recovery time, and demand lifelong nutritional follow-up
Silverstein said he decided to investigate the over-prescribing of B12 shots, because "as an internal medicine resident, I have seen many patients come into the emergency department, and they were getting B12 injections without having a really good reason for it." His study could not determine why family physicians were prescribing it inappropriately including whether it was initiated by the doctor or at the request of the patient
It plays a crucial role in ensuring the accuracy and safety of experiments, because it is almost always the first liquid that touches a freshly opened lyophilized peptide vial
