President of the Korean Society of Korean Cosmetic Surgery & Medicine Vice president of the Korean Association for Laser, Dermatology and Trichology General director of the Korean Aesthetic Surgery & Laser Society Vice president of the Korea Academy Lase Symposium General director of Eunpyeong-gu Doctors’ Association Senior Academic director of the korean Aesthetic Surgery and laser society Professor of the korean college of Cosmetic surgery Lutronic key doctor & speaker/FineMEC key doctor& speaker Meditronics Key doctor & speaker/N-Finders Key doctor& speaker Representative director of Yonsei Fam’s Dermatology, Obesity and Aesthetics Network