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MRI Assessment of Lumbar Intervertebral Disc Degeneration with Lumbar Degenerative Disease Using the Pfirrmann Grading Systems
- Li-Peng Yu,
- Wen-Wu Qian,
- Guo-Yong Yin,
- Yong-Xin Ren,
- Zhi-Yi Hu
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- Published: December 20, 2012
- https://doi.org/10.1371/journal.pone.0048074