title: Saline or air?
authors.forename: Krzysztof M
authors.initials: KM
authors.lastname: Kuczkowski
mesh_terms: D000328:Adult; D000388:Air; D015360:Analgesia, Epidural / Q000009:adverse effects* / Q000379:methods; D016362:Analgesia, Obstetrical / Q000009:adverse effects* / Q000379:methods; D004824:Epidural Space; D005260:Female; D006261:Headache / Q000209:etiology*; D006801:Humans; D011007:Pneumocephalus / Q000209:etiology*; D011247:Pregnancy; D012965:Sodium Chloride / Q000008:administration & dosage*
chemical_list: D012965:Sodium Chloride