Text and Data Mining valid from 2019-11-11
Accepted: 4 November 2019
First Online: 11 November 2019
Compliance with Ethical Standards
: Toru Miwa, Kyoko Tachii, Fan-Yan Wei, Taku Kaitsuka, and Kazuhito Tomizawa declare that they have no conflict of interest.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. All procedures performed in studies involving animals were in accordance with the ethical standards of the institution or practice at which the studies were conducted (Committee on the Use and Care of Animals at Kumamoto University; Number: H28-053). This article does not contain any studies with human participants performed by any of the authors.