Dr. Lee graduated from Korea University, College of Medicine, Seoul, Korea in 1996. He was appointed as the Associate professor of Psychiatry in 2010. He had served as a Visiting Scholar at the Pediatric Brain Research and Intervention Center, Department of Psychiatry, at the University of Illinois in Chicago for one and a half years. Dr. Lee has been a Professor of Psychiatry at The College of Medicine, Korea University, South Korea since 2015. He is a child psychiatrist and also works in the field of consultation–liaison psychiatry.