AUTHOR CONTRIBUTIONS
All the listed authors have participated actively in the study. Wenli Tan, Kay Jann, and Yijing Li designed the study; Hui Chen, Jiling Huang, Yilei Chen, Yingjie Kang, Zhigang Gong, Yanwen Huang, and Hui Wang collected the data; Wenli Tan, Hui Chen, and Kay Jann analyzed the data; Hui Chen and Wenli Tan wrote the manuscript; Kay Jann revised the manuscript. Songhua Zhan provided technical support.