Junseok Bae, MDPresident and Medical DirectorDirector, Wooridul International Minimally Invasive Spine Surgery Fellowship Program Department of Neurological Surgery Chungdam Wooridul Spine Hospital, Seoul, KoreaSang-Ho Lee, MD, PhDChairman, Wooridul Spine Hospital, Seoul, KoreaFounder and Honorary President, World Congress of Minimally Invasive Spinal Surgery and TechniquesClinical professor of Anatomy, Yonsei University College of medicine