Full member of the World Dermatological Association Full member of the European Dermatological Society Full member of the Korean Dermatological Association Full member of the Korean Dermatological Society Full member of the Korean Acne Society Full member of the Korean Vitiligo Society Full member of the Korean Contact Dermatitis and Skin Allergy Society Full member of the Korean Clinical Skin Therapy Research Society Full member of the Korean Society of Surgeons Active member of the Korean Dermal Laser Society Full member of the Korean Hair Transplantation Society Full member of the Korean Hair Society Full member of the Korean Society of Orthodontics Full member of the Korean Society of Skin and Anti-Aging Full member of the Korean Society of Aesthetic Plastic Surgery Supervisor of the Korean