Author Contributions:Study concept and design: Fu, Chen, Zu, and Efferth. Acquisition of data: Chen and Z. Liu. Analysis and interpretation of data: X. Liu, Y. Liu, and Yao. Drafting of the manuscript: Fu, Chen, Z. Liu, X. Liu, Y. Liu, and Efferth. Critical revision of the manuscript for important intellectual content: Zu, Yao, and Efferth. Statistical analysis: Fu and Chen. Obtained funding: Fu and Zu. Administrative, technical, and material support: Fu. Study supervision: Fu, Chen, Zu, Z. Liu, X. Liu, Y. Liu, Yao, and Efferth.