DeFrate, L. E., Doehring, T. C., Nishida, K., Kang, J. D., Gilbertson, L. G., & Woo, S. L. Y. (1997). Virtual reality assisted measurement of in-vivo cervical spine kinematics. American Society of Mechanical Engineers, Bioengineering Division (Publication) BED, 36, 9–10.

DeFrate, L. E., T. C. Doehring, K. Nishida, J. D. Kang, L. G. Gilbertson, and S. L. Y. Woo. “Virtual reality assisted measurement of in-vivo cervical spine kinematics.” American Society of Mechanical Engineers, Bioengineering Division (Publication) BED 36 (December 1, 1997): 9–10.

DeFrate LE, Doehring TC, Nishida K, Kang JD, Gilbertson LG, Woo SLY. Virtual reality assisted measurement of in-vivo cervical spine kinematics. American Society of Mechanical Engineers, Bioengineering Division (Publication) BED. 1997 Dec 1;36:9–10.

DeFrate, L. E., et al. “Virtual reality assisted measurement of in-vivo cervical spine kinematics.” American Society of Mechanical Engineers, Bioengineering Division (Publication) BED, vol. 36, Dec. 1997, pp. 9–10.

DeFrate LE, Doehring TC, Nishida K, Kang JD, Gilbertson LG, Woo SLY. Virtual reality assisted measurement of in-vivo cervical spine kinematics. American Society of Mechanical Engineers, Bioengineering Division (Publication) BED. 1997 Dec 1;36:9–10.