Funding for this research was provided by:
Grants-in-Aid for Scientific Research from the Japan Society for the Promotion of Science (17K10866, 17K10865)
Received: 22 January 2020
Accepted: 13 March 2020
First Online: 5 April 2020
Ethics approval and consent to participate
: This study was approved by the ethical committee of the Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan (approval nos. G-1960 and 1603–070). Informed consent was obtained from all subjects included in the study. All animal procedures and protocols were approved by the Committee on the Ethics of Animal Experimentation at Okayama University (approval no. OKU-2018176).
: The authors declare that they have no competing interests.