METHODS: Forty polymyositis guinea pigs induced by Coxsackievirus B 1 were divided at random into A(15), B(15) and C(10) groups. Group A and B were treated with Radix Bupleuri and Ramulus Cinnamomi, respectively. Group C received no treatment.

• 方法：取柯萨奇病毒B1诱导的多发性肌炎豚鼠模型40只，随机分为A组（15只）给柴胡、B组（15只）给桂枝和C组（10只）作为空白对照。