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1 Epidural Steroid and Morphine Injection for the Treatment of Low Back Pain
Sung Keun Sohn, Jae Do Kim, Kyu Yong Lee
J Korean Orthop Assoc.1989;24(4):1195-1200.   Published online 2019 January 24     DOI: http://dx.doi.org/10.4055/jkoa.1989.24.4.1195
      

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