About the Authors

Chaang-Ray Chen

Affiliation Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan

Wun-Yi Shu

Affiliation Institute of Statistics, National Tsing Hua University, Hsinchu, Taiwan

Cheng-Wei Chang

Affiliation Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan

Ian C. Hsu

ichsu@mx.nthu.edu.tw

Affiliation Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CRC WYS CWC ICH. Performed the experiments: CRC WYS CWC. Analyzed the data: CRC WYS CWC. Contributed reagents/materials/analysis tools: CRC WYS CWC. Contributed to the writing of the manuscript: CRC WYS CWC ICH.