Cleaning is associated with an increased risk of asthma symptoms, but few studies have measured functional characteristics of airway disease in cleaners.

中文翻译：

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专业清洁工的呼吸系统健康：症状、肺功能和危险因素

清洁与哮喘症状的风险增加有关，但很少有研究测量清洁工气道疾病的功能特征。