1. Department of Internal MedicineSeoul National University College of Medicine and Seoul National University Bundang Hospital Seongnam South Korea
2. Department of Internal MedicineKorea University Guro Hospital Seoul South Korea
3. Department of Internal MedicineDaerim Saint Mary's Hospital Seoul South Korea
4. Department of Internal MedicineMediplex Sejong Hospital Incheon South Korea
5. Department of RadiologySeoul National University College of Medicine and Seoul National University Bundang Hospital Seongnam South Korea
6. Department of Internal MedicineSeoul National University College of Medicine Seoul South Korea