title: Inner space: the strange extra-arachnoid world beneath the true dura.
authors.affiliation: Department of Surgery, Division of Neurosurgery, University Medical Center, Tucson, Arizona, USA.
authors.forename: Charles W
authors.initials: CW
authors.lastname: Needham
mesh_terms: D001099:Arachnoid; D004388:Dura Mater; D006801:Humans; D009462:Neurology; D013131:Spine / Q000502:physiology