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However, these interventions are mostly symptomatic treatments that are difficult to effectively reverse the process of liver fibrosis and cannot repair the already compromised liver structure and function

## **Documentation requirements** Documentation should include: - The diagnosis or condition showing low serum vitamin B12, pernicious anemia, or other diseases classified by B-group deficiencies

In addition, pollution can damage collagen and elastin of the skin, leading to dehydration of skin and wrinkle formation

Clinical Pediatrics, 54(1), 1924

The NHS notes that taking up to 2,000 micrograms daily is unlikely to cause harm in most people, though there is generally no benefit to such excessive amounts without confirmed deficiency