4) Samukawa T, et al: Development of a self-scored persistent airflow obstruction screening questionnaire in a general Japanese population: the Hisayama study. Int J Chron Obstruct Pulmon Dis 12: 1469-1481, 2017.
5) 日本呼吸器学会喘息とCOPDのオーバーラップ (Asthma and COPD Overlap: ACO) 診断と治療の手引き2018作成委員会編: 喘息とCOPDのオーバーラップ (Asthma and COPD Overlap: ACO) 診断と治療の手引き2018. 東京, 2017.