Chairman of the Department of Plastic Surgery at Eul-ji General Hospital, Seoul, Korea
President of the Korean Society of Microsurgery, Korean Society for Surgery of the Hand, Korean Society of Aesthetic Plastic Surgery, Korean Society of Plastic and Reconstructive Surgeons, Korean Medical Faculty Association and Seoul National University Medical College Faculty Association
Member of the Korean Medical Association, Korean Society of Plastic and Reconstructive Surgeons, Korean Society of Aesthetic Plastic Surgery, Korean Society for Surgery of the Hand, Korean Society of Microsurgery, Interna