1. Incidence of genitofemoral nerve block during lumbar sympathetic block: Comparison of two lumbar injection sites;Sayson;Reg Anesth,1997
2. Neurolytic lumbar sympathetic blockade: Duration of denervation and relief of rest pain;Cousins;Anaesth Intensive Care,1979
3. Lumbar sympathectomy: A single-needle technique;Hatangdi;Br J Anaesth,1985
4. Sympathetic neural blockade of upper and lower extremity;Lofstrom,1988
5. Identification of the anterior psoas sheath as a landmark for lumbar sympathetic block;Sprague;Reg Anesth,1990