Myelography.
D001416:Back Pain / Q000209:etiology; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging; D006801:Humans; D009192:Myelography; D013125:Spinal Neoplasms / Q000000981:diagnostic imaging* / Q000209:etiology; D013129:Spinal Puncture / Q000009:adverse effects*