Meijerink, H. J., N. Verdonschot, C. J. van Loon, G. Hannink, and M. C. de WaalMalefijt. “Similar TKA Designs With Differences in Clinical Outcome”. Acta Orthopaedica, vol. 82, no. 6, Dec. 2011, pp. 685-91, doi:10.3109/17453674.2011.636677.