“…2,6,13,16,20,23,24,25,27,31,35,37,40 As a result, these agents have been proposed as the mainstay of therapy for many neuropathic pain syndromes. 3,4,5,7,10,11,14,18,22,28,38,39,41 Although the nature and causes of neuropathic pain have been extensively studied, many other questions remain unanswered. For example, how do the clinical characteristics of patients with PNDs differ from those of patients without painful neuropathies?…”