Frontera, W. R., DeLisa, J. A., Gans, B. M., Walsh, N. E., Robinson, L. R., & Basford, J. (2010). Physical medicine and rehabilitation: Principles and practice. Volume I (Fifth edition.). Lippincott Williams & Wilkins Health.

Frontera, Walter R., Joel A. DeLisa, Bruce M. Gans, Nicholas E. Walsh, Lawrence R. Robinson, and Jeffrey Basford. Physical Medicine and Rehabilitation: Principles and Practice. Volume I. Fifth edition. Philadelphia: Lippincott Williams & Wilkins Health, 2010.

Frontera, Walter R., et al. Physical Medicine and Rehabilitation: Principles and Practice. Volume I. Fifth edition. Lippincott Williams & Wilkins Health, 2010.