Funding for this research was provided by:
national center for child health and development (28-6, 2019B-4,2019A-1)
Japan Agency for Medical Research and Development (19ek0109373s0202)
Takeda Science Foundation
Received: 11 March 2021
Accepted: 22 June 2021
First Online: 30 June 2021
: 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.