Waninger, K. N., Rothman, M. L., Foley, J., & Heller, M. (2004). Computed tomography is diagnostic in the cervical imaging of helmeted football players with shoulder pads. Journal of athletic training, 39(3), S. 217-222. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC522142/

Waninger, Kevin N., Michael L. Rothman, Jack Foley, and Michael Heller. "Computed Tomography Is Diagnostic in the Cervical Imaging of Helmeted Football Players With Shoulder Pads." Journal of Athletic Training 39, no. 3 (2004): S. 217-222.

Waninger, Kevin N., Michael L. Rothman, Jack Foley, and Michael Heller. "Computed Tomography Is Diagnostic in the Cervical Imaging of Helmeted Football Players With Shoulder Pads." Journal of Athletic Training 39.3 (2004): S. 217-222.