title: Oral enzyme therapy in severe back pain.
mesh_terms: D001168:Arthritis / Q000188:drug therapy; D001416:Back Pain / Q000188:drug therapy*; D002918:Chymotrypsin / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D006801:Humans; D010919:Placebos; D013122:Spinal Diseases / Q000188:drug therapy; D014357:Trypsin / Q000627:therapeutic use*
chemical_list: D010919:Placebos; D002918:Chymotrypsin; D014357:Trypsin