1. Clinical Research Centre, Masan National Tuberculosis Hospital, Changwon, Korea.
2. LAS Inc., Gimpo, Korea.
3. Division of Pulmonary, Sleep, and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.
4. Division of Pulmonary, Sleep, and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea.