About the Authors

Hajime Yokota

hy14861114@gmail.com

Affiliation Department of Cardiology, Tokyo Metropolitan Geriatric Hospital, Itabashi, Tokyo, Japan

Yasuko Imai

Affiliation Department of Cardiology, Tokyo Metropolitan Geriatric Hospital, Itabashi, Tokyo, Japan

Yusuke Tsuboko

Affiliation Department of Cardiology, Tokyo Metropolitan Geriatric Hospital, Itabashi, Tokyo, Japan

Aya M. Tokumaru

Affiliation Department of Radiology, Tokyo Metropolitan Geriatric Hospital, Itabashi, Tokyo, Japan

Hajime Fujimoto

Affiliation Department of Cardiology, Tokyo Metropolitan Geriatric Hospital, Itabashi, Tokyo, Japan

Kazumasa Harada

Affiliation Department of Cardiology, Tokyo Metropolitan Geriatric Hospital, Itabashi, Tokyo, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YT HF KH. Performed the experiments: HY YI YT AT HF. Analyzed the data: HY YI AT. Contributed reagents/materials/analysis tools: HY YI KH. Wrote the paper: HY KH. Contributed to the manuscript preparation: YI HY. Contributed to the manuscript review: YT AT HF KH.