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背景及目的:最近,关于叶酸的安全性引起了广泛的关注,尤其是其与肿瘤风险的关系。本研究是通过两项随机对照试验评价叶酸和维生素B治疗对肿瘤发生率和全因死亡率的影响。
BACKGROUND & AIM: Recently, the safety of folic acid has drawn wide attention, especially its relationship with tumor risk. This study evaluated the effects of folic acid and vitamin B treatment on tumor incidence and all-cause mortality in two randomized controlled trials.