About the Authors

Yuan-Jen Chang

ronchang@ctust.edu.tw

Affiliations Department of Management Information Systems, Central Taiwan University of Science and Technology, Taichung, Taiwan, Republic of China, Institute of Biomedical Engineering and Material Science, Central Taiwan University of Science and Technology, Taichung, Taiwan, Republic of China

Bor-Tsung Hsieh

Affiliation Department of Medical Imaging and Radiological Science, Central Taiwan University of Science and Technology, Taichung, Taiwan, Republic of China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YJC. Performed the experiments: YJC. Analyzed the data: YJC. Contributed reagents/materials/analysis tools: BTH. Wrote the paper: YJC.