Back to the future: epidurography.
D000767:Anesthesia, Epidural; D001416:Back Pain / Q000188:drug therapy; D016001:Confidence Intervals; D004824:Epidural Space / Q000000981:diagnostic imaging*; D005471:Fluoroscopy / Q000009:adverse effects; D006801:Humans; D007268:Injections, Epidural; D007278:Injections, Spinal; D016012:Poisson Distribution; D015641:Radiography, Interventional; D013256:Steroids / Q000008:administration & dosage