Surgical instrument tracking optimizes trans-sphenoidal endoscopic treatment of petrous apex cholesterol granuloma.
Voormolen, E.H.J., Froelich, S., Woerdeman, P.A., Berkelbach van der Sprenkel, J.W., Braunius, W.W., Regli, L.P.E.
Journal of Neurological Surgery. Part A, Central European Neurosurgery 74 (2), p. 109-112