The advantage of the prone position approach to the lumbar epidural space.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000767:Anesthesia, Epidural / Q000379:methods*; D004824:Epidural Space / Q000000981:diagnostic imaging; D006801:Humans; D008161:Lumbosacral Region; D008875:Middle Aged; D011187:Posture; D014057:Tomography, X-Ray Computed