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glutathione synthetase deficiency genereview Glutathione synthetase deficiency | Cellular
Description
Abdel-Daim MM, Eltaysh R, Hassan A, Mousa SA

Pinch the skin Grab a fold of skin between your thumb and index finger

Since the cyanocobalamin form of B-12 is deeply red colored, easy to crystallize, and is not sensitive to air-oxidation, it is typically used as a form of B-12 for food additives and in many common multivitamins

References Ramsdell W
