Paraspinous Lidocaine Injection for Chronic Nonspecific Low Back Pain: A Randomized Controlled Clinical Trial - Imamura, Marta; Imamura, Satiko Tomikawa; Targino, Rosa Alves; Morales-Quezada, León; Tomikawa, Luis Carlos Onoda; Alfieri, Fabio M.; Filippo, Thais R.; Rocha, Ivan Dias da; Bolliger Neto, Raul; Fregni, Felipe; Battistella, L. R. (journal of Paim, 2016)