A matched case-control study on the relationships between cigarette smoking, alcohol drinking, hypertension and cerebral hemorrhage was conducted.
采用以医院为基础的配比病例对照研究方法，探讨了吸烟、饮酒及高血压与脑出血的关系。
Preterm delivery was associated with maternal drug-treated hypertension and impaired renal function. A matched case-control study showed no evidence of increased renal allograft loss after pregnancy.
早产与母亲服药治疗高血压及肾功能损害有关。一项配对病例对照研究发现没有证据表明妊娠会增加移植肾失功发生率。
Methods a 1:1 matched case-control study was conducted 175 patients with gastric cancer and 175 controls were surveyed by questionnaire.
方法采用1：1配对的病例对照研究，对175对病例及对照进行饮食及生活行为问卷调查。
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