目的：探讨小儿慢性咳嗽的病因。
Objective: To investigate the cause of chronic cough in children.
鼻部疾病是慢性咳嗽重要的危险因素。
Nasal disease was an important risk factor to chronic cough.
目的探讨小儿难治性慢性咳嗽的病因。
Objective To study the etiology of pertinacious chronic cough in children.
慢性咳嗽是儿童呼吸系统常见的症状。
目的：探讨慢性咳嗽的病因。
目的探讨慢性咳嗽病因及特异性治疗方法。
Objective To investigate the cause and specific treatment of chronic cough.
目的：研究引发慢性咳嗽病因及诊疗现状。
Research cause chronic cough etiology and treatment the status quo.
他患了慢性咳嗽。
他患了慢性咳嗽。
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