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Vitamin B12 - Wikipedia, the free encyclopedia 請記住華盛頓在講實話時,手上正握著斧頭...Vitamin B12, vitamin B12 or vitamin B-12, also called cobalamin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involv...
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