Heckman, J. D., Lee, P. P., Jackson, C. A., Relles, D., Weinstein, J. N., Gebhardt, M. C., … D’Ambrosia, R. D. (1998). Orthopaedic workforce in the next millennium. The Journal of Bone and Joint Surgery. American Volume, 80(10), 1533–1551.

Heckman, J. D., P. P. Lee, C. A. Jackson, D. Relles, J. N. Weinstein, M. C. Gebhardt, M. A. Simon, J. J. Callaghan, and R. D. D’Ambrosia. “Orthopaedic workforce in the next millennium.” The Journal of Bone and Joint Surgery. American Volume 80, no. 10 (October 1998): 1533–51.

Heckman JD, Lee PP, Jackson CA, Relles D, Weinstein JN, Gebhardt MC, et al. Orthopaedic workforce in the next millennium. The Journal of bone and joint surgery American volume. 1998 Oct;80(10):1533–51.

Heckman, J. D., et al. “Orthopaedic workforce in the next millennium.” The Journal of Bone and Joint Surgery. American Volume, vol. 80, no. 10, Oct. 1998, pp. 1533–51.

Heckman JD, Lee PP, Jackson CA, Relles D, Weinstein JN, Gebhardt MC, Simon MA, Callaghan JJ, D’Ambrosia RD. Orthopaedic workforce in the next millennium. The Journal of bone and joint surgery American volume. 1998 Oct;80(10):1533–1551.