Spinal MR Findings in Continuous Epidural Analgesia Without InfectionAJNR 26:991-995,987, Ikushima,I.,et al, 2005
Neuropathic Pain of Peripheral Origin:Advances in Pharmacologic TreatmentNeurol 45 (suppl 8) :s17-s25995., Galer,B.S., 1995