Theeven, P. J. R., Hemmen, B., Rings, F., Meys, G. H., Brink, P. R., Smeets, R. J., & Seelen, H. A. (2011). Functional added value of microprocessor-controlled knee joints in daily life performance of Medicare Functional Classification Level-2 amputees. Journal of Rehabilitation Medicine, 43(10), 906–915. https://doi.org/10.2340/16501977-0861