1- Spasticity Management in Multiple Sclerosis, The Journal of Spinal Cord Medicine 28;2 2005 https://uems-prm.eu/wp-content/uploads/2017/09/spasticity-management-multiple-sclerosis.pdf
2- https://www.nationalmssociety.org/Symptoms-Diagnosis/MS-Symptoms/Spasticity accessed august 2020