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背景:血浆同型半胱氨酸水平升高是一个已确定的心血管疾病危险因素。维生素B12在同型半胱氨酸的代谢中起重要作用,它同样也是引起心血管疾病的主要因
Background: Elevated plasma homocysteine levels are a confirmed risk factor for cardiovascular disease. Vitamin B12 plays an important role in homocysteine metabolism and is also a major cause of cardiovascular disease