About the Authors

Kuang-Chi Chen

Affiliation Department of Medical Informatics, Tzu Chi University, Hualien, Taiwan

Tse-Yi Wang

Affiliation Institute for Information Science, Academia Sinica, Taipei, Taiwan

Chen-hsiung Chan

frankch@mail.tcu.edu.tw

Affiliation Department of Medical Informatics, Tzu Chi University, Hualien, Taiwan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CHC. Performed the experiments: KCC CHC. Analyzed the data: KCC TYW CHC. Contributed reagents/materials/analysis tools: CHC. Wrote the paper: KCC CHC.