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曾报道给婴儿肌注维生素K预防维生素K缺乏性出血与嗣后的儿童期癌症间有相关。英国的一些医院在某阶段内对所有的婴儿采用非选择性维生素K治疗，有些则仅对维生素K缺乏而有高危险性出血者作选择性治疗。本文报道病例对照性研究结果。方法先到国家儿童肿瘤登记处查阅1962年前居?
It has been reported to the baby intramuscular injection of vitamin K to prevent vitamin K deficiency bleeding and subsequent childhood cancer are related. Some hospitals in the United Kingdom use non-selective vitamin K treatment for all infants during a certain stage, while others treat only those with high-risk vitamin K deficiency and high-risk bleeding. This article reports case-control studies. First approach to the National Children’s Tumor Registry check before 1962?