About the Authors

Zheng Ke

Affiliation Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China

Shea Ping Yip

Affiliation Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China

Le Li

Affiliation Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China

Xiao-Xiang Zheng

Affiliation College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou, China

Kai-Yu Tong

k.y.tong@polyu.edu.hk

Affiliation Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ZK SPY LL XXZ KYT. Performed the experiments: ZK LL. Analyzed the data: ZK KYT. Contributed reagents/materials/analysis tools: KYT SPY XXZ. Wrote the paper: ZK. Revised the article critically for important intellectual content: SPY KYT.