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K.IyerP
JqL, QL, ZL, JtL collected and analyzed the data
Ethics declarations Conflict of interest The author(s) declared no potential conflicts of interest concerning this articles research, authorship, and publication
Expected timeline (Protocol A): For reconstitution and site rotation, see the GHK-Cu injection dosage guide
Despite its importance, B12 deficiency is remarkably common particularly among vegetarians, older adults, individuals with digestive conditions, and anyone whose body has difficulty absorbing this vitamin from food or oral supplements
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