title: Is it time to abandon the loss of resistance to air technique for labor analgesia?
authors.forename: Krzysztof M
authors.initials: KM
authors.lastname: Kuczkowski
authors.forename: Michele S
authors.initials: MS
authors.lastname: Reynolds
mesh_terms: D000388:Air; D016362:Analgesia, Obstetrical / Q000009:adverse effects* / Q000379:methods*; D006801:Humans; D007268:Injections, Epidural / Q000009:adverse effects* / Q000379:methods*