方法：将58例患者随机分为治疗组和对照组。
Methods: 58 patients were randomly divided into treatment and control groups.
方法选70例COPD患者随机分为营养治疗组和对照组。
Methods 70 cases of election COPD patients were randomly divided into nutritional treatment group and controlled group.
方法80例急性进展性脑梗死患者随机分为治疗组和对照组，每组40例。
Methods80 patients with progressive cerebral infraction were divided into experiment group and control group with 40 patients in each group.
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