title: Subtraction in cervical pneumomyelography and an application of RISA myelography.
mesh_terms: D000328:Adult; D001099:Arachnoid / Q000000981:diagnostic imaging; D002574:Cervical Vertebrae / Q000002:abnormalities / Q000000981:diagnostic imaging*; D004576:Electromyography; D005260:Female; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000000981:diagnostic imaging; D008297:Male; D008722:Methods; D008875:Middle Aged; D009192:Myelography; D011187:Posture; D013115:Spinal Canal / Q000000981:diagnostic imaging; D013122:Spinal Diseases / Q000000981:diagnostic imaging*; D013129:Spinal Puncture; D013382:Subtraction Technique; D013679:Technology, Radiologic