Amal E. Shehata and  Manal E. Fareed,  Effect of Cold, Warm or Contrast Therapy on Controlling Knee Osteoarthritis Associated Problems.   journal   = {International Journal of Medical and Health Sciences}, [online]. World Academy of Science, Engineering and Technology.
    September 2013, vol. 81(9). 518 - 524
    [viewed 18 October 2021]. Available from: https://publications.waset.org/pdf/16635.