1. Practical Statistics for Medical Research;Altman,1991
2. American Academy of Orthopaedic Surgeons (AAOS), 1966. Joint Motion: Method of Measuring and Recording. Churchill Livingstone, Edinburgh and London.
3. D’Andrea, S., Tylkowski, C., Losito, J., Arguedas, W., Bushman, T., Howell, V., 1993. Three-dimensional kinematics of the foot. Proceedings of the Eighth Annual East Coast Clinical Gait Conference, Rochester, MN, USA, May 5–8, pp. 109–110.
4. DeLozier, G., Alexander, I., Narayanaswamy, R., 1991. A method for measurement of integrated foot kinematics. International Symposium on Three-Dimensional Analysis of Human Movement, Montreal, Canada, pp. 79–82.
5. Gage, J.R., DeLuca, P.A., Davis, R.B., et al., 1997. Clinical Gait Analysis, A Focus on Interpretation. Connecticut Childrens Medical Center, Hartford, Connecticut, USA.