Results: 1. In these 60 cases with CC, were caused by cough variant asthma, Mycoplasma pneumonia infection, postnasal drip syndrome, gastro-esophageal reflux;
结果：1、60例慢性咳嗽患儿病因依次为：咳嗽变异性哮喘、肺炎支原体感染、鼻后滴漏综合征、胃食道反流；
Results: 1. In these 60 cases with CC, were caused by cough variant asthma, Mycoplasma pneumonia infection, postnasal drip syndrome, gastro-esophageal reflux;
结果：1、60例慢性咳嗽患儿病因依次为：咳嗽变异性哮喘、肺炎支原体感染、鼻后滴漏综合征、胃食道反流；
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