[Radiographic evaluation of the direction of the catheters in lumbar epidural anesthesia].
D000767:Anesthesia, Epidural / Q000295:instrumentation; D002404:Catheterization / Q000379:methods; D006801:Humans; D008161:Lumbosacral Region / Q000000981:diagnostic imaging*; D011859:Radiography
Valoración radiográfica de la dirección de los catéteres en anestesia epidural lumbar.