title: Reliability of the 'pop' sign as an indicator of dural puncture.
authors: J Z
authors: JZ
authors: Hull
authors: M W M
authors: MW
authors: Rucklidge
mesh_terms: D000773:Anesthesia, Obstetrical / Q000379:methods*; D000775:Anesthesia, Spinal / Q000379:methods*; D004388:Dura Mater; D005260:Female; D006801:Humans; D011247:Pregnancy; D013119:Spinal Cord Injuries / Q000517:prevention & control; D013129:Spinal Puncture / Q000379:methods*