Medicine (Baltimore) 2018 Jul;97(30):e11594
Department of General Surgery, Armed Forces Capital Hospital, Gyeonggi-do Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine Department of Laboratory Medicine, Veterans Health Service Medical Center, Seoul Department of Preventive Medicine Department of Internal Medicine, Chonbuk National University Medical School, Research Institute of Clinical Medicine of Chonbuk National University-Chonbuk National University Hospital, Jeonju, Korea Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea.