title: Use of urea in the herniated intervertebral disc syndrome. A preliminary report.
mesh_terms: D002986:Clinical Trials as Topic; D006801:Humans; D007275:Injections, Intravenous; D007405:Intervertebral Disc Displacement / Q000188:drug therapy*; D014508:Urea / Q000627:therapeutic use*
chemical_list: D014508:Urea