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Jackson AL, Loeb LA: The contribution of endogenous sources of DNA damage to the multiple mutations in cancer

examined the impact of vitamin A supplementation on bronchopulmonary dysplasia (BPD) in extremely low birth weight neonates

Whilst true toxicity from too much vitamin B12 is exceptionally rare due to the body's natural excretion mechanisms, elevated B12 levels can occur and may signal underlying health conditions

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130 (4S Suppl): 901S909S

The peptide contains an intramolecular disulfide bridge between two cysteine residues, which constrains its three-dimensional structure