About the Authors

Kimiko Tomioka

tkimiko@naramed-u.ac.jp

Affiliation Nara Prefectural Health Research Center, Nara Medical University, Kashihara, Nara, Japan

Norio Kurumatani

Affiliation Nara Prefectural Health Research Center, Nara Medical University, Kashihara, Nara, Japan

Hiroshi Hosoi

Affiliation Nara Prefectural Health Research Center, Nara Medical University, Kashihara, Nara, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KT HH. Performed the experiments: KT NK. Analyzed the data: KT NK. Wrote the paper: KT NK HH.