Dr. Gun Choi, M.D., president of Wooridul Hospital in Pohang, Republic of Korea, is one of the spine endoscopic procedure experts in the world who performed over 3,000 cases and issued 10 SCI international academic journals. He obtained his Bachelor of Science degree and completed his residency training at the Hanyang University of Korea. And he went on to receive a Master’s Degree and Doctor of Medicine in neurosurgery.