Clarke, Susan A, Roger A Brooks, Jonathan L Hobby, James A Wimhurst, Ben J Myer, and Neil Rushton. 2001. “Correlation of Synovial Fluid Cytokine Levels With Histological and Clinical Parameters of Primary and Revision Total Hip and Total Knee Replacements”. Acta Orthopaedica 72 (5):491-98. https://doi.org/10.1080/000164701753532835.