Anatomy of epidural space and methods of epidural analgesia.
D000767:Anesthesia, Epidural / Q000379:methods*; D000773:Anesthesia, Obstetrical / Q000379:methods*; D004824:Epidural Space / Q000033:anatomy & histology*; D005260:Female; D006801:Humans; D011247:Pregnancy; D013115:Spinal Canal / Q000033:anatomy & histology*