Funding for this research was provided by:
Japan Society for the Promotion of Science (26110005, 24116704, 23229001, 16H06385)
Japan Agency for Medical Research and Development (JP17gm0610004, JP18gm5010001)
Japan Spina Bifida & Hydrocephalus Research Foundation
Received: 16 April 2018
Accepted: 26 June 2018
First Online: 31 July 2018
Ethics approval and consent to participate
: All animal work has been conducted according to the ethics guidelines of the University of Tokyo and was approved by the Ethics Committee of the University of Tokyo (Ethical Approval no. P28–11).
: Not applicable.
: The authors declare that they have no competing interests.
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