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采用口服维生素K_4(VK_4)的方法进行婴儿晚发性维生素K缺乏出血症(VKDB)群体预防,取得良好效果,报告如下.
Oral vitamin K_4 (VK_4) method for infant delayed vitamin K deficiency (VKDB) population prevention and achieved good results, the report is as follows.