About the Authors

Ryoichi Nakashima

one.island.one@gmail.com

Affiliation Tohoku University, and Japan Science and Technology Agency, Crest, Sendai, Japan

Satoshi Shioiri

Affiliation Tohoku University, and Japan Science and Technology Agency, Crest, Sendai, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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