Authors’ contributions
Liang Yu, Mu-Gen Dai, and Wen-Feng Lu contributed equally to this work. Dr. Lei Liang and Du-Jin Feng had full access to all the data in the study and took responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: Liang Yu, Lei Liang, and Du-Jin Feng. Acquisition, analysis, or interpretation of data: Mu-Gen Dai, Wen-Feng Lu, Dong-Dong Wang, Tai-Wei Ye, and Si-Yu Liu. Drafting of the manuscript: Liang Yu and Tai-Wei Ye. Critical revision of the manuscript for important intellectual content: Lei Liang. Statistical analysis: Dong-Dong Wang, Fei-Qi Xu, and Wen-Feng Lu. Obtained funding: Lei Liang, Mu-Gen Dai, and Si-Yu Liu. Administrative, technical, or material support: Wen-Feng Lu and Lei Liang. Study supervision: Du-Jin Feng.