title: Thoracic epidural analgesia in the relief of postoperative pain.
mesh_terms: D000005:Abdomen / Q000601:surgery; D000767:Anesthesia, Epidural; D005041:Etidocaine; D006801:Humans; D010149:Postoperative Pain / Q000517:prevention & control*; D013903:Thoracic Surgery; D013909:Thorax / Q000601:surgery; D013934:Thymectomy
chemical_list: D005041:Etidocaine