1 | University of Ulsan College of Medicine, Ulsan, Republic of Korea
(Ulsan University Hospital, Department of Respiratory and Critical Care Medicine) |
2 | University of Ulsan College of Medicine, Ulsan, Republic of Korea
(Ulsan University Hospital, Department of Anesthesiology and Pain Medicine) |
3 | University of Ulsan College of Medicine, Ulsan, Republic of Korea
(Ulsan University Hospital, Department of Diagnostic Radiology) |
4 | University of Ulsan College of Medicine, Ulsan, Republic of Korea
(Ulsan University Hospital, Department of Occupational and Environmental Medicine) |