Ahmed R. Z. Baghdadi and  Mona H. Gamal Eldein,  Long-Term Follow-up of Dynamic Balance, Pain and Functional Performance in Cruciate Retaining and Posterior Stabilized Total Knee Arthroplasty.   journal   = {International Journal of Biomedical and Biological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2015, vol. 98(2). 129 - 134
    [viewed 25 February 2020]. Available from: https://publications.waset.org/pdf/10000515.