1989.3 – 1991.2: Kyungpook National University, Premedical course

1991.3 – 1995.2: Kyungpook National University, College of Medicine

1996.3 – 1997.8: Kyungpook National University, School of medicine, Master, Radiology

2004.9 – 2006.8: Seoul National University, School of medicine, Thoracic Radiology, PhD

1994.08 - 1994.09: Albany Medical Center, Department of Radiology, Albany, New York, USA Clerkship as a Visiting student

1995.09 - 2001.02: Kyungpook National University Hospital, Internship and Residency

1997.08 : ECFMG certified (USMLE, United State Medical License Examinations, Certificate No. 0-554-661-9)

2001.02 - 2001.05: Korea 3 Military Academy, Medical Officer, Radiologist, Captain in the Army as a compulsory service

2001.07 - 2001.08: Korea Air Force Medical Center, Aviation Physiological training, Primary course for Flight surgeon

2001.03 - 2004.04: Chuljung Military Hospital, Armed Forces Capital General Hospital, Department of Radiology, Medical Officer, Captain

2004.05 - 2005.02: Seoul National University Hospital, Clinical Fellow, Thoracic Radiology

2005.03 - 2006.02: Seoul National University Hospital, Clinical Instructor, Thoracic Radiology

2008.12 - 2011.06: Chief Director, Radiology, Gangnam Healthcare Center, SNUH

2006.03 -           : Seoul National University Hospital, Assistant Professor, Thoracic Radiology

2006.09 -            : Seoul National University Hospital, Gangnam Healthcare Center, Assistant Professor, Thoracic Radiology

2011.07 - 2012.06 : University of Iowa, Carver College of Medicine, Visiting Professor in the Cardiothoracic Imaging (H1b visa), Department of Radiology and Iowa Comprehensive Lung Imaging Center

2011.05 - 2013.04: Iowa State Medical License, Radiology

2012.09 - Present : Seoul National University Hospital, Associate Professor, Thoracic Radiology

2015.09 - Present :Seoul National University, College of medicine, Associate Professor

2016.09 - 2018.08: Seoul National University Hospital, Executive Vice-Chairman, Department of Radiology

2018.09 - Present : Professor, University of Iowa Hospitals and Clinics, Carver College of Medicine, Professor, Department of Radiology, Iowa city, IA, USA