The Expanding Prominence of Toxic Leukoencephalopathy
J Neuropsychiatry Clin Neurosci 29:308-318, Filley,C.M.,et al, 2017
Randomised Double-Blind Trial of Intravenous Fentanyl in Neuropathic Pain
Lancet 349:753-758, Dellemijn,P.L.I.&Vanneste,J.A.L., 1997