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迫常见的主诉，而
头软化症是最常见的原因。
[软骨]软化，软骨软化病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迫常见的主诉，而头软化症是最常见的原因。
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