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Standard reference range for serum B12: 200 to 1100 picograms per milliliter (pg/mL) Interpreting serum B12 results in different contexts: Serum B12 400 pg/mL: Normal
NAC is a byproduct of glutathione
7 This is crucial as psoriasis is associated with an increased risk of cardiovascular events 8 and a patient may be taking medications that are metabolised by CYP/P-glycoprotein mechanisms
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