?:authorAffiliation
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[\'Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Yeouido St. Mary\'s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.\', \'Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Republic of Korea.\', \'Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul, Republic of Korea.\', \'Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St. Mary\'s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.\', \'Big Data Research Division, Health Insurance Review and Assessment Service, Wonju, Republic of Korea.\', \'Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University Hospital, School of Medicine, Konkuk University, Seoul, Republic of Korea.\']
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