The identification of the epidural space. A critical analysis of the various methods employed.
D000758:Anesthesia; D000775:Anesthesia, Spinal; D004824:Epidural Space; D006801:Humans; D013115:Spinal Canal; D013116:Spinal Cord; D013129:Spinal Puncture
ANESTHESIA, SPINAL; SPINAL CANAL; SPINAL PUNCTURE