Further information on the DAS can be found in the following publication:
Brashear, A., Zafonte, R., Corcoran, M., Galvez-Jimenez, N., Gracies, J-M., Gordon, M.F., et al. (2002). Inter- and Intrarater reliability of the Ashworth Scale and the Disability Assessment Scale in patients with upper-limb poststroke spasticity. Archives of Physical Medicine Rehabilitation, 83, 1349-1351.