title: Gas myelography.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D009192:Myelography / Q000379:methods; D009609:Nitrous Oxide; D010100:Oxygen; D014056:Tomography, X-Ray
chemical_list: D009609:Nitrous Oxide; D010100:Oxygen