Funding for this research was provided by:
Japan Society for the Promotion of Science (15K15096)
National Center for Child Health and Development (28-6, 2019B-4)
Japan Agency for Medical Research and Development (19ek0109373s0202)
Takeda Science Foundation
Received: 30 June 2020
Accepted: 13 October 2020
First Online: 22 October 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board Committee at the National Center for Child Health and Development (Committee’s Reference Number: 518) and performed after obtaining written informed consent to participate in this study from the patients or the patients’ parents.
: We obtained written informed consent from the patients or the patients’ parents to publish patients’ clinical and molecular information.
: The authors declare that they have no competing interests.