Laine, T., Lund, T., Ylikoski, M., Lohikoski, J., & Schlenzka, D. (2000). Accuracy of pedicle screw insertion with and without computer assistance: A randomised controlled clinical study in 100 consecutive patients. Springer-Verlag.

Laine, T., T. Lund, M. Ylikoski, J. Lohikoski, and D. Schlenzka. Accuracy of Pedicle Screw Insertion With and Without Computer Assistance: A Randomised Controlled Clinical Study in 100 Consecutive Patients. Springer-Verlag, 2000.

Laine, T., et al. Accuracy of Pedicle Screw Insertion With and Without Computer Assistance: A Randomised Controlled Clinical Study in 100 Consecutive Patients. Springer-Verlag, 2000.