1. (1) Fent, T., Counting (On) An Aging Population, IEEE Computing in Science & Engineering, Vol.8, No.6 (2006), pp. 88-96.
2. (2) Mann, W.C., The Aging Population and Its Needs, IEEE Pervasive Computing, Vol.3, No.2 (2004), pp. 12-14.
3. (3) Van Exel, N. J. A., Koopmanschap, M. A., Scholte op Reimer, W., Niessen, L. W., and Huijsman, R., Cost-Effectiveness of Integrated Stroke Services, QJM-J. Assoc. Physicians, Vol.98, No.6 (2005), pp. 415-425.
4. (4) Jaime, R. P., Matjacic´, Z., and Hunt, K. J., Paraplegic Standing Supported by FES-Controlled Ankle Stiffness, IEEE Trans. on Neural Systems and Rehabilitation Engineering, Vol.10, No.4 (2002), pp. 239-248.
5. (5) Peshkin, M., Brown, D. A., Santos-Munné, J. J., Makhlin, A., Lewis, E., Colgate, J. E., Patton, J., and Schwandt, D., 2005, KineAssist: A Robotic Overground Gait and Balance Training Device, Proc. of IEEE 9th Intl. Conf. on Rehabilitation Robotics, Chicago. USA (2005-7), pp. 241-246.