of;
Orthopaedics,;
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of;
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University.;
Nanjing,;
Jiangsu;
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China;
of;
radiology,;
the;
First;
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of;
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Medical;
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Jiangsu;
210029,;
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of;
Statistics,;
Nanjing;
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University.;
Nanjing,;
Jiangsu;
210029,;
China;
椎弓根螺钉; 技术; 韧带; 工作时间; 操作过程; 断层扫描; 监测数据; 安全性;