Medical School: Seoul National University College of Medicine. Specialty Training: Fellowship: Dept. of Nuclear Medicine, Samsung Medical Center; Residency: Dept. of Nuclear Medicine, Samsung Medical Center; Internship: Seoul National University College of Medicine. Participation in Academic Societies and Research: Member, Korean Medical Association; Member, Korean Society of Nuclear Medicine; Member, Korean Society of Molecular Imaging; Member, Korean Thyroid Association; Member, Korean Society of Lymphedema; Member, Society of Nuclear Medicine; Member, European Association of Nuclear Medicine;