About the Authors

Toshio Ishikawa

tishi-tky@umin.ac.jp

Affiliation Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, Japan

Satoshi Takahashi

Affiliation Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, Japan

Koji Morita

Affiliation Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, Japan

Hiroko Okinaga

Affiliation Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, Japan

Tamio Teramoto

Affiliation Teikyo Academic Research Center, Teikyo University, Tokyo, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TI HO. Performed the experiments: TI ST KM. Analyzed the data: TI ST KM. Contributed reagents/materials/analysis tools: TI TT. Wrote the paper: TI ST KM HO TT.