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Facet and Selective Nerve Root Blocks as a Diagnostic and Therapeutic Alternative in Patients with Chronic Low Back Pain. Rev. Asoc. Arg. Ort. y Traumatol [Internet]. 2023 Jun. 17 [cited 2026 Nov. 4];88(3):296-301. Available from: https://www.raaot.org.ar/index.php/AAOTMAG/article/view/1514