Jeonbuk National University - Research Institute of Clinical Medicine, Jeonbuk National University - Jeonbuk National University Hospital, Jeonbuk National University, Ewha Womans University, Ewha Womans University, Jeonbuk National University, Hanyang University - Division of Pulmonary Medicine and Allergy, Jeonbuk National University - Jeonbuk National University Hospital and Jeonbuk National University - Jeonbuk National University Hospital