title: Identification of the epidural space.
authors.affiliation: Department of Anaesthesia; Sunnybrook and Women- College Health Sciences Centre; Toronto, Canada; StephenHalpern@sw.ca.
authors.forename: Stephen
authors.initials: S
authors.lastname: Halpern
authors.forename: Pamela
authors.initials: P
authors.lastname: Angle
mesh_terms: D000767:Anesthesia, Epidural / Q000379:methods; D004824:Epidural Space / Q000033:anatomy & histology*; D006801:Humans