1. Department of Biomedical Systems Informatics; Yonsei University College of Medicine; Seoul Republic of Korea
2. Clinical Research Center, Asan Institute of Life Sciences, Asan Medical Center; University of Ulsan College of Medicine; Seoul Republic of Korea
3. Department of Clinical Epidemiology and Biostatistics, Asan Medical Center; University of Ulsan College of Medicine; Seoul Republic of Korea
4. Department of Pulmonary and Critical Care Medicine, Asan Medical Center; University of Ulsan College of Medicine; Seoul Republic of Korea