| Computerized lateral endoscopic approach to invertebral bodies | 0 | 0.34 | 2001 |
| Development of fluoroscopic registration in spinal neuronavigation | 1 | 0.51 | 2001 |
| Evaluation of accuracy in frame-based versus fiducial-based registration for stereotaxy in Parkinson's deep electrode implantation | 0 | 0.34 | 2001 |
