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American College of Obstetricians and Gynecologists (ACOG)
Dunger D, Yuen K, Ong K
Vitamin B12 is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system and in the formation of blood
Hepatic N-de-ethylation yields monoethylglycinexylidide and glycinexylidide, active metabolites that contribute modestly to both therapeutic and toxic effects
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