My name is Yong Seuk Lee. I am attending Seoul National University as a professor. I am passionate and optimistic in most situations. In addition, I always prepare in advance and work with an affirmative attitude. I am a kind of early-bird and start everything early. I mostly start my day with 5 km running around my area and this makes me healthy and confident. My clinical work is principally focused on the treatment of knee problem including knee surgery and sports medicine. I have special interest in the ligament and meniscal surgery of the sports injury, osteotomy of the mal-aligned early osteoarthritis, and arthroplasty of the advanced osteoarthritis.