nonspecific low back pain

Evaluation of use and cost of medical care of common lumbar disorders in Korea: cross-sectional study of Korean Health Insurance Review and Assessment Service National Patient Sample data
Yong-Jun Ahn, Joon-Shik Shin, Jinho Lee, Yoon Jae Lee, Me-Riong Kim, Ki Byung Park, Jun-Hwan Lee, Kyung-Min Shin, In-Hyuk Ha

BMJ Open Sep 2016, 6 (9) e012432; DOI: 10.1136/bmjopen-2016-012432

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nonspecific low back pain