The Chronic Pain Syndrome:Misconceptions & Management
Ann Int Med 93:588-596, Reuler,J.B.,et al, 1980
Non-Specific Low Back Pain
Lancet 389:736-747, Maher, C.,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