Identification of epidural space using air with normal saline.
Kale
S S
SS
Oosthuysen
S A
SA
D000388:Air; D000767:Anesthesia, Epidural / Q000379:methods*; D004824:Epidural Space; D004867:Equipment Design; D006801:Humans; D012965:Sodium Chloride; D013594:Syringes
D012965:Sodium Chloride