目的：探讨小儿慢性咳嗽的病因。

Objective: To investigate the cause of chronic cough in children.

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前言：目的综述小儿慢性咳嗽病因及治疗对策。

Objective: To systematically review the etiology and treatment of chronic cough in the pediatric population.

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目的观察中药二仙饮治疗小儿慢性咳嗽的临床疗效。

ObjectiveTo observe the clinical effect of Chinese medicine Erxian Decoction on chronic cough in children.

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