title: Lumbar epidural nerve blockade versus parenteral analgesics.
mesh_terms: D000767:Anesthesia, Epidural; D000777:Anesthetics / Q000008:administration & dosage*; D004837:Epinephrine / Q000008:administration & dosage; D006801:Humans; D007273:Injections, Intramuscular; D008012:Lidocaine / Q000008:administration & dosage; D010149:Postoperative Pain / Q000517:prevention & control*; D010313:Partial Pressure; D010423:Pentazocine / Q000008:administration & dosage; D012119:Respiration
chemical_list: D000777:Anesthetics; D008012:Lidocaine; D010423:Pentazocine; D004837:Epinephrine