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Vitamin B12 Deficiency The prevalence of vitamin B12 deficiency among elderly Americans is thought to be about 20%
Standard protocols use 0.25-0.5 mg (250-500 mcg) daily via subcutaneous injection
Vitamin B-12 treatment of asymptomatic, deficient, elderly Chileans improves conductivity in myelinated peripheral nerves, but high serum folate impairs vitamin B-12 status response assessed by the combined indicator of vitamin B-12 status
Effectiveness of Tinnitan Duo(R) in Subjective Tinnitus with Emotional Affectation: A Prospective, Interventional Study
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