Dr. Ji-Soo Kim, M.D. PhD. is a medical director at Dr. Youth clinic, in Seoul, Korea. He has published 2 renowned English textbooks, “Clinical anatomy of the face for Botulinum and filler injection" (2016, Springer), and "Ultrasound anatomy of face and neck for minimally invasive procedures" (2020, Springer). Dr. Kim’s clinical practice is mainly devoted to minimal invasive procedures such as botulinum toxin, filler and thread using ultrasonography for maximizing safety and precision. His current research interest is ultrasound guided clinical aesthetic procedures as a pioneer in the field of aesthetic ultrasound procedures.