方法：将54例哮喘患儿按就诊日期随机分为观察组和对照组。
Methods: 54 asthma children were randomly divided into observation and control groups according to the date of hospital visiting.
“一般研究完成日期就诊”或“CSED就诊”指的是为所有受试者安排在CSED之后的30天内的诊断。
The "Common Study End Date visit" or "CSED visit" is a visit scheduled for all subjects within 30 days after the CSED.
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