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Exposure to loud noises, medications side effects, infection or disease are the top causes
Use the wrong chart and you've drawn double or half your prescribed dose
Although the mechanisms are not yet clear, they may involve mitochondrial energy metabolism, DNA damage repair, and so on
B-12 supplementation in normal multivitamins, probably taken every other day may be helpful but high dose B-12 does not appear to impart any special benefit to fight the coronavirus
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