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I should note here that being a string of 15 amino acids is also remarkably un-special
Journal of Applied Physiology, 106, 1720-1729
Not Intended for Diagnostic or Therapeutic Use
A deficiency in vitamin B12 can show up in several ways
Organizations like the United States Pharmacopeia (USP) and the FDA set rigorous guidelines that labs must follow, even for Research Use Only (RUO) products, to maintain high operational standards
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