title: Painless myelography: introduction of a new aspiration cannula and review of 541 consecutive studies.
mesh_terms: D002555:Cerebrospinal Fluid; D003287:Contrast Media; D006801:Humans; D001239:Inhalation; D008722:Methods; D009192:Myelography / Q000295:instrumentation; D009339:Needles; D010146:Pain / Q000517:prevention & control*; D011187:Posture; D012399:Rotation; D012600:Scoliosis / Q000000981:diagnostic imaging; D013126:Spinal Nerve Roots / Q000000981:diagnostic imaging; D013997:Time Factors
chemical_list: D003287:Contrast Media