Online Manuscript Submission

    A novel retractor for reducing operation time and radiation exposure in percutaneous pedicle screw placement
    Niu Lei1, He Rui1, Duan Liqun1, Zhang Wenzhi1, Li Xu1, Cai Haiping1
    1The First Affiliated Hospital of University of Science and Technology of China, Spine Center, Department of Orthopedics, Hefei



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