Minimally Invasive Endoscopic Neurosurgery - a Survey.- Technology Assessment of Endoscopic Surgery.- Fundamentals of Laser Science.- Magnetic Field Guided Endoscopic Dissection Through a Burr Hole May Avoid More Invasive Craniotomies. A Preliminary Report.- New Kinds of Microneuroprotectors for Microsurgery and Endoscopy of Cerebellopontine Angle Neurovascular Decompression.- A Computer Assisted Toolholder to Guide Surgery in Stereotactic Space.- Ultrasound Guided Endoscopic Neurosurgery - New Surgical Instrument and Technique.- A Multipurpose Cerebral Endoscope and Reflections on Technique and Instrumentation in Endoscopic Neurosurgery.- Endoscopic Anatomy of the Third Ventricle.- Endoscopic Anatomy of the Ventricles.- "Stereology" of Intracranial Lesions.- Endoscopic Diagnosis and Treatment of Para- and Intra-Ventricular Cystic Lesions.- Stereotactic Techniques for Colloid Cysts: Roles of Aspiration, Endoscopy, and Microsurgery.- Neuroendoscopic Third Ventriculostomy. A Practical Alternative to Extracranial Shunts in Non-Cummunicating Hydrocephalus.- Endoscopic Surgery of Traumatic Intracranial Haemorrhages.- Endoscopic Stereotactic Interventions in the Treatment of Brain Lesions.- Stereotactic Endoscopic Resection of Angiographically Occult Vascular Malformations.- Endoscopic Stereotactic Treatment of Brain Abscesses.- Epiduroscopy and Spinaloscopy: Endoscopic Studies of Lumbar Spinal Spaces.- Operative Spinal Endoscopy: Stereotopography and Surgical Possibilities.