1. Continuous epidural analgesia for labour and delivery;Nielsen;Can Anaesth Soc J,1962
2. Extradural analgesia for caesarean section (editorial);Moir;Br J Anaesth,1979
3. Epidural anesthesia in general surgery;Lund;Anesthesiology,1956
4. Continuous peridural and caudal analgesia in surgery and early ambulation;Cleland;Northwest Med,1949
5. The present status of spinal (subarachnoid) and epidural (peridural) block: a comparison of the two techniques;Moore;Anesth Analg (Cleve),1968