METHOD Adopt case - control and history case - control study, divided delivery women into responsibility midwifery group and traditional midwifery group.
方法采用同期对照和历史对照研究的方法,将产妇分为责任制助产组和传统助产组。
Methods Case control study and self-control study in Chinese herbal treatment group were conducted.
方法采用病例对照研究和中药治疗组自身前后对照研究。
Methods: By the case-control study, 65 cases with acute cerebral infarction patients group and 50 healthy persons control group were selected.
方法:采用病例对照的研究方法,选择急性脑梗死患者65例为病例组,健康体检者50例为对照组。
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