Professor, Department of Emergency Medicine, Yonsei University Wonju College of Medicine,
Chief, Hyperbaric Center, Wonju Severance Christian Hospital, Gangwondo, Korea.President, Korean Society of Undersea & Hyperbaric Medicine (KSUHM)
Planning Director, Korean Society of Clinical Toxicology
Planning Director, Korean Society of Emergency Medicine.1995 LICENSURE IN MEDICINE, 1999 KOREAN BOARD OF EMERGENCY MEDICINE.