1 Department of Nuclear Medicine, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea (the Republic of).
2 Department of Thoracic and Cardiovascular Surgery, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea (the Republic of).
3 Department of Radiology, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea (the Republic of).
4 Department of Nuclear Medicine, Jeju National University Hospital, Jeju National University School of Medicine, Jeju, Korea (the Republic of).
5 Department of Nuclear Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea (the Republic of).
6 Department of Nuclear Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea (the Republic of).