About the Authors

Erna G. Santoso

Contributed equally to this work with: Erna G. Santoso, Keita Yoshida

Affiliation Department of Mechanical Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan

Keita Yoshida

Contributed equally to this work with: Erna G. Santoso, Keita Yoshida

Affiliation Department of Mechanical Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan

Yasushi Hirota

Affiliation Department of Obstetrics and Gynecology, School of Medicine, The University of Tokyo, Tokyo, Japan

Masanori Aizawa

Affiliation Department of Mechanical Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan

Osamu Yoshino

Affiliation Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan

Akio Kishida

Affiliation Department of Material-based Medical Engineering, Division of Biofunctional Restoration, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan

Yutaka Osuga

Affiliation Department of Obstetrics and Gynecology, School of Medicine, The University of Tokyo, Tokyo, Japan

Shigeru Saito

Affiliation Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan

Takashi Ushida

Affiliations Department of Mechanical Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan, Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan

Katsuko S. Furukawa

furukawa@mech.t.u-tokyo.ac.jp

Affiliations Department of Mechanical Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan, Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: EGS KY KSF. Performed the experiments: EGS KY MA YH KSF. Analyzed the data: EGS KY KSF. Contributed reagents/materials/analysis tools: YH AK KSF. Wrote the paper: EGS KY YH AK OY YO SS TU KSF.