title: Developments in neurosurgery: "the 4 factors".
abstract: This article traces some of the developments in the practice of neurosurgery which have come about dependent upon certain technological advances.
authors.affiliation: Department of Neurosurgery, Allegheny General Hospital, Pittsburgh, Pennsylvania 15212, USA. Pjannett@wpahs.org
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Jannetta
mesh_terms: D000758:Anesthesia / Q000266:history / Q000379:methods / Q000639:trends; D000818:Animals; D002321:Career Choice; D003952:Diagnostic Imaging / Q000266:history / Q000379:methods / Q000639:trends; D004503:Education, Medical, Graduate / Q000266:history / Q000639:trends; D004594:Electrophysiology / Q000266:history / Q000379:methods / Q000639:trends; D049673:History, 20th Century; D006801:Humans; D008866:Microsurgery / Q000266:history / Q000379:methods / Q000639:trends; D009493:Neurosurgery / Q000266:history* / Q000379:methods / Q000639:trends*; D019635:Neurosurgical Procedures / Q000266:history* / Q000379:methods / Q000639:trends*; D057170:Translational Research, Biomedical / Q000266:history / Q000379:methods / Q000639:trends