1. Director of JW Plasitc Surgery Center, Seoul, Korea(www.jwbeauty.com)2. President of Korean Academic Association of Rhinoplasty Surgeons3. Co-founder of Rhinoplasty Society of Asia (RSA) 4. Peer reviewer of the journal; Aesthetic Plastic Surgery, Archives of Plastic Surgery, Archives of Aesthetic Plastic Surgery5. Clinical professor of Yonsei Univ. Medical School6. Author of the textbook: <Atals of Asian Rhinoplasty>, <Asian Rhinoplsty>