Prevalence of Facet Effusion and Its Relationship with Lumbar Spondylolisthesis and Low Back Pain: The Wakayama Spine Study oleh Shinto K, Minamide A, Hashizume H, Oka H, Matsudaira K, Iwahashi H, Ishimoto Y, Teraguchi M, Kagotani R, Asai Y, Muraki S, Akune T, Tanaka S, Kawaguchi H, Nakamura K, Yoshida M, Yoshimura N, Yamada H