· Seoul National University Hospital Resident 
· Seoul National University Hospital Plastic Surgery Specialist 
· The Korean Medical Association Regular Member 
· Member of Korean Association of Clinical Plastic Surgeons 
· The Korean Society of Plastic and Reconstructive Surgeons Life Member 
· Korean Society for Aesthetic Plastic Surgery Regular Member 
· The Korean Society for Aesthetic Plastic Surgery Regular Member 
· Member of Reserch council for Korean Association of Maxillofacial Plastic 
· Member of The Korean Society of Craniofacial