Funding for this research was provided by:
National Center for Child Health and Development (28-6, 2019-B4)
Japan Agency for Medical Research and Development (20ek0109373h0003)
Takeda Science Foundation
Received: 21 April 2020
Accepted: 8 July 2020
First Online: 22 July 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 and performed after obtaining written informed consent to publish the clinical and molecular information.
: 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.