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Importantly, serum B12 levels can be misleadingly normal or even elevated in chronic liver disease due to increased levels of binding proteins (such as haptocorrin) and reduced clearance, meaning that total B12 measurements may not accurately reflect tissue B12 status or functional deficiency

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The material is not intended for human or veterinary consumption, administration, or any form of self-experimentation

The addition of bacteriostatic preservatives such as benzyl alcohol became common practice during the twentieth century to allow multi-use solutions with reduced microbial contamination risk