Loss-of-resistance technique using both air and saline.
S
S
Barros
D000388:Air; D000767:Anesthesia, Epidural / Q000295:instrumentation / Q000379:methods*; D000779:Anesthetics, Local / Q000008:administration & dosage; D003238:Connective Tissue; D004824:Epidural Space; D006801:Humans; D012867:Skin; D012965:Sodium Chloride; D013594:Syringes
D000779:Anesthetics, Local; D012965:Sodium Chloride