About the Authors

Ze-qun Li

Contributed equally to this work with: Ze-qun Li, Yun-peng Zhao

Affiliations Department of Spine Surgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P. R. China, Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P. R. China

Yun-peng Zhao

Contributed equally to this work with: Ze-qun Li, Yun-peng Zhao

Affiliation Department of Spine Surgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P. R. China

Wen-yu Jia

Affiliations Department of Endocrinology and Metabolism, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong Province, P. R. China, Institute of Endocrinology, Shandong Academy of Clinical Medicine, Jinan, Shandong Province, P. R. China

Xia Wang

Affiliation Department of Spine Surgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P. R. China

Bin Chen

Affiliation Department of Spine Surgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P. R. China

Muhammad Shahbaz

Affiliation Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P. R. China

Lin Nie

doctor_lizequn@163.com (LN); miraculously2008@163.com (LC)

Affiliation Department of Spine Surgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P. R. China

Lei Cheng

doctor_lizequn@163.com (LN); miraculously2008@163.com (LC)

Affiliation Department of Spine Surgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P. R. China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LN LC. Performed the experiments: ZQL YPZ. Analyzed the data: WYJ BC. Contributed reagents/materials/analysis tools: XW WYJ. Wrote the paper: ZQL YPZ MS.