Instructor, Department of Neurology, Harvard Medical School, Boston, MA
Professor and Chairman, Department of Psychiatry, The Seoul Saint Mary’s Hospital, The College of Medicine, The Catholic University of Korea
Assistant Professor, Department of Psychiatry, NYU School of Medicine and Research Scientists, New York, NY
Professor and Chairman, Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
Assistant Professor, Department of Neuropsychiatry, Kyushu University and Kyushu Hospital, Fukuoka, Japan
Professor, Department of Nuclear Medicine, Department of Radiology and Psychiatry, Biomedical Science & Engineering, Yonsei University Medical Science, Yonsei University College of Medicine, South Korea