title: A loss-of-resistance technique using both air and saline.
authors.forename: L
authors.initials: L
authors.lastname: Glantz
authors.forename: Y
authors.initials: Y
authors.lastname: Gozal
authors.forename: M
authors.initials: M
authors.lastname: Gertel
mesh_terms: D000767:Anesthesia, Epidural / Q000295:instrumentation / Q000379:methods*; D004824:Epidural Space / Q000033:anatomy & histology*; D006801:Humans; D013594:Syringes