Pathways An online resource that allows GPs and nurse practitioners and their office staff to quickly access current and accurate referral information, including wait times and areas of expertise, for specialists and specialty clinics
4,5 Dietary insufficiency, pernicious anemia (i.e., an autoimmune process that reduces available intrinsic factor and subsequent absorption of vitamin B 12 1,2,6,7 ), and long-term use of metformin or acid-suppressing medications have been implicated in B 12 deficiency
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B12 is essential for the structure of the myelin sheaths of the nerves, which have a protective function and at the same time enable a fast transmission of nerve impulses