MD, Seoul National University College of Medicine
MS, Seoul National University College of Medicine
PhD, Seoul National University College of Medicine

Fellowship
Department of Radiology – Thoracic Radiology Division, University of California, San Francisco, USA Thoracic center, Hospital for Sick Children, Great Ormond Street, London, UK
Residency
Department of Radiology, Seoul National University Hospital, Seoul, Korea
Internship
Seoul National University Hospital, Seoul, Korea

Professor, Department of Radiology, Seoul National University College of Medicine
Associate Dean for Research Affairs, Seoul National University College of Medicine
Vice President of Clinical Affairs, Seoul National University Hospital
Dean, Seoul National University College of Medicine
President, Korean Association of Medical Colleges

Executive Vice President for Research Affairs, and Planning, Seoul National University

Certificate of physician, Republic of Korea
Certificate of specialist of therapeutic radiology (radiation oncology), Republic of Korea

Radiology, Thoracic Radiology

Editor-in-Chief. Korean Journal of Radiology (1999-2005)
President, Korean Association of Medical Journal Editors (2008 -2010 )
President, Korean Society of Thoracic radiology (1988-1996)
President, 1st Asian Congress of Thoracic Radiology, Seoul (2006. 6)
President, Organizing Committee (2009-2013) and Congress (June 2013), 3rd World Congress of Thoracic Imaging, Seoul

208 articles in international peer-reviewed journal