title: Letter: Treatment with chymopapain.
mesh_terms: D002807:Chondroitin; D010450:Endopeptidases / Q000009:adverse effects* / Q000627:therapeutic use; D007405:Intervertebral Disc Displacement / Q000188:drug therapy; D009088:Mucoproteins
chemical_list: D009088:Mucoproteins; D002807:Chondroitin; D010450:Endopeptidases