Funding for this research was provided by:
Japan Society for the Promotion of Science (JP17K10080, JP26713036, JP16H05357, JP17H01539, JP17K15630, JP16H06254)
Japan Agency for Medical Research and Development (JP18ek0109280, JP18dm0107090, JP18ek0109301, JP18ek0109348, JP18kk020501)
Text and Data Mining valid from 2019-06-04
Received: 8 February 2019
Accepted: 29 May 2019
First Online: 4 June 2019
Ethics approval and consent to participate
: The study protocol and genetic analyses were approved by the Yokohama City University Ethical Board (A121129002, A141127010) and the National Center for Child Health and Development (1892). Written informed consent was obtained for the use of all human samples.
: Not applicable.
: The authors declare that they have no competing interests.