Methods: 53 cases with depression were randomly divided into 2 groups.
方法：将53例抑郁症患者随机分为2组。
Methods 181 patients with traumatic synovitis were randomly divided into 2 groups.
方法181例膝关节创伤性滑膜炎患者随机分为2组。
METHODS: The 160 patients with cholecystolithiasis were randomly divided into 2 groups.
方法：将160例胆囊结石病人随机分为2组。
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