Methods: 70 patients with chronic severe hepatitis B were divided at random into therapeutic group and control group.
方法：70例慢性重型肝炎患者，随机分成治疗组及对照组。
Methods Divide 100 infants with acute infection of the upper respiratory tract into two groups:the therapeutic group, 60 cases, the control group, 40 cases.
方法将100 例急性上呼吸道感染患儿随机分两组。 治疗组60 例，对照组40 例。
Methods 96 patients with HCH were randomly divided into the Nimodipine therapeutic group (57 cases) and the control group (39 cases).
方法将96例hch患者随机分成尼莫地平治疗组(57例)和常规治疗组(39例)。
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