1. World Health Organization: The World Bank. World Report on Disability Who (2011)
2. World Health Organization: WHO Guidelines on Health-Related Rehabilitation. WHO (2014)
3. Kwakkel, G., Wagenaar, R.C., Kollen, B.J., et al.: Predicting disability in stroke-a critical review of the literature. Age Ageing 25(6), 479–489 (1996)
4. Hillman, M.: Rehabilitation robotics from pact to present-a historical perspective. In: 8th International Conference on Rehabilitation Robotics, pp. 23–25. Springer, Cham (2003)
5. Buerger, S.P., Krebs, H.I., Hogan, N.: Characterization and control of a screw-driven robot for neurorehabilitation. In: Proceedings of the 2001 IEEE International Conference on Control Applications, pp. 388–394. IEEE, Mexico (2001)