About the Authors

Yoshiki Yamakoshi

yamakoshi@gunma-u.ac.jp

Affiliation Graduate School of Science and Technology, Gunma University, Tenjin, Kiryu, Gunma, Japan

Sei-ichiro Motegi

Contributed equally to this work with: Sei-ichiro Motegi, Osamu Ishikawa

Affiliation Graduate School of Medicine, Gunma University, Showa, Maebashi, Gunma, Japan

Osamu Ishikawa

Contributed equally to this work with: Sei-ichiro Motegi, Osamu Ishikawa

Affiliation Graduate School of Medicine, Gunma University, Showa, Maebashi, Gunma, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YY SM OI. Performed the experiments: YY SM. Analyzed the data: YY SM. Contributed reagents/materials/analysis tools: YY SM. Wrote the paper: YY SM OI.