?:authorAffiliation
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[\'Division of Pulmonary and Allergy, Department of Internal Medicine, Konkuk University Hospital, School of Medicine.\', \'Department of Internal Medicine, Hanyang University College of Medicine.\', \'Department of Mathematics, College of Natural Sciences, Hanyang University.\', \'Division of Pulmonary and Critical Care Medicine, Department of Medicine, Chungbuk National University Hospital, Chungbuk National University College of Medicine.\', \'Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital.\']
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