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本实验研制了清音茶剂，并制定了质量标准，同时进行了五年的临床观察，观察总人数148人，总有效率84％，显效62％。
In this experiment, Qingyin Tea was developed and its quality standards were established. At the same time, clinical observations were conducted for five years. The total number of 148 persons was observed. The total effective rate was 84%, and the effective rate was 62%.