Evidence-based guideline: Treatment of painful diabetic neuropathy
Neurol 76:1758-1765, Bril,V., et al, 2011
Treatment of Painful Diabetic Neuropathy with Topical Capsaicin
A Double-Blind, Vehicle-Controlled Study, The Capsaicin Study Group, Arch Int Med 151:2225-222991., , 1991