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Community reputation provides a useful signal but has real limits
10.1016/S0140-6736(95)91742-X 15
If youre on a serious anti-aging protocol, do it right
Nasal spray provides systemic distribution that may dilute effects at a specific location
If a patient is identified ( via high circulating mtDNA or low monocyte HLA-DR, etc
B12 injections are a direct and efficient way to restore optimal levels, especially when supplements or diet changes havent made a difference
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