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Pay attention to signs of a possible infection, such as worsening pain, warmth, or pus, or the symptoms of an allergic reaction, like hives, difficulty breathing, or swelling of the face and throat
Civil Engineering, UCLA Last updated: July 2026 Human-researched and AI-assisted with full editorial review
B 12r and B 12s can be prepared from cyanocobalamin by controlled potential reduction, or chemical reduction using sodium borohydride in alkaline solution, zinc in acetic acid, or by the action of thiols
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