Retracted: Modified Closing-Opening Wedge Osteotomy to Correct Kyphosis in Ankylosing Spondylitis

Chaoshuai Feng1, Huiren Tao2, Kai Yang1

  • 1Department of Orthopaedics, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China (mainland).

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