About the Authors

Aiko Shinko

Affiliation Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan

Takashi Agari

agarit@cc.okayama-u.ac.jp

Affiliation Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan

Masahiro Kameda

Affiliation Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan

Takao Yasuhara

Affiliation Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan

Akihiko Kondo

Affiliation Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan

Judith Thomas Tayra

Affiliation Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan

Kenichiro Sato

Affiliation Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan

Tatsuya Sasaki

Affiliation Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan

Susumu Sasada

Affiliation Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan

Hayato Takeuchi

Affiliation Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan

Takaaki Wakamori

Affiliation Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan

Cesario V. Borlongan

Affiliation Department of Neurosurgery, University of South Florida College of Medicine, Tampa, Florida, United States of America

Isao Date

Affiliation Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TA TY MK AK ID. Performed the experiments: AS KS JTT TS HT SS. Analyzed the data: TW TY. Contributed reagents/materials/analysis tools: TA TY MK AS. Contributed to the writing of the manuscript: AS TA TY MK ID CVB.