1. Peridural segmental anesthesia with intracaine;Abajian;Anesthesiology.,1943
2. Epidural anesthesia for cesarean section; report of 125 cases;Ansbro;New York J. Med.,1952
3. Peridural block; analysis of 3, 637 cases and a review;Bonica;Anesthesiology.,1957
4. Anestesia Extradurali: Indicazioni in chirurgia e nel trattamento antalgico;Ciocatto;G. Ital. Anesth.,1952
5. Continuous peridural and caudal analgesia in surgery and early ambulation;Cleland;Northwest Med.,1949