Academic materials 제목 내용 Association of risk of osteoarthritis and hypertension in Korean adult population aged 40-59 in pre- 2021-02-05 Association between Relative Handgrip Strength and Osteoporosis in Older Women: the Korea National H 2020-12-23 Learning curve for transforaminal percutaneous endoscopic lumbar discectomy: A systematic review 2020-09-11 An Empirical Study on the Effects of Walking Time on Knee Joint Pain Based on the Korea National Hea 2020-04-29 1 2 3