Authors’ contributions
Dr. Yang Tan and Shun Guo analyzed the data and was a major contributor in writing the manuscript. Dr. Hua Wang performed all the surgeries. Dr. Kai Tie and Dr. Jun Qin were the assistants of surgeries and managed all the patients. Xinyu Zhao collected all data. Prof. Liaobin Chen designed the study and supervised all the procedures. All authors read and approved the final manuscript.