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Non-Specific Low Back Pain
Lancet 389:736-747, Maher, C.,et al, 2017
Cancer Pain:Management
Lancet 339:1031-1036, Hanks,G.W.&Justins,D.M., 1992
The Chronic Pain Syndrome:Misconceptions & Management
Ann Int Med 93:588-596, Reuler,J.B.,et al, 1980