Served as a Professor in Plastic Surgery, UUCM Asan Medical Center Served as the president of the Korean Society of Plastic and Reconstructive Surgeons Served as the president of the Korea Cleft Palate-Craniofacial Association Served as the president of Korean academic association of Oculoplastic Surgery, KAOPS, The Korean Society of Plastic and Reconstructive Surgeons Emeritus professor Asan Medical Center Seoul National University College of Medicine Full member, the Korean society for Aesthetic Plastic Surgery Full member, the Korea Cleft Palate-Craniofacial Association Member of American Society of Plastic Surgeons (ASPS) Member International Confederation Of Plastic Surgery Societies (ICOPLAST)
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