Ohtori S, Inoue G, Orita S, Eguchi Y, Ochiai N, Kishida S, Takaso M, Aoki Y, Kuniyoshi , Nakamura J, Ishikawa T, Arai G, Miyagi M, Kamoda H, Suzuki M, Toyone T, Takahashi
PURPOSE: Chronic low back pain is a common clinical problem. As medication, non-steroidal anti-inflammatory drugs are generally used; however, they are sometimes non-effective. Recently, opioids have been used for the...