
1	Motion Study in the Fused Lumbar Spine Sung Keun Sohn, Jae Do Kim, Woo Min Jeong, Jae Ho Jang J Korean Orthop Assoc.1989;24(2):523-531. Published online 2019 January 24 DOI: http://dx.doi.org/10.4055/jkoa.1989.24.2.523