Objective: To investigate the cause of chronic cough in children.
目的：探讨小儿慢性咳嗽的病因。
Objective To study the etiology of pertinacious chronic cough in children.
目的探讨小儿难治性慢性咳嗽的病因。
ObjectiveTo observe the clinical effect of Chinese medicine Erxian Decoction on chronic cough in children.
目的观察中药二仙饮治疗小儿慢性咳嗽的临床疗效。
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