Although laryngomalacia is the leading cause of stridor in infancy, vocal cord paralysis, despite its low incidence, is still the second most common cause.

摘要喘鸣是一岁以下的婴幼儿呼吸窘常见的主诉，而喉头软化是最常见的原因。

This paper studies the results and pharmacologic effects of the liquid extracted from Elephantopus scaber L. in curing three major symptoms of bronchitis (cough, sputum and stridor).

用动物实验方法,研究地胆根乙醇提取液治疗支炎,、痰、喘状的效果及其药理作用。