Funding for this research was provided by:
Asan Medical Center Children's Hospital (2018-481)
Received: 12 September 2020
Accepted: 24 February 2021
First Online: 4 March 2021
: This study was approved by the Institutional Review Board of Asan Medical Center, Seoul, Korea (IRB No. 2020–0667). Sanger sequencing and whole exome sequencing were performed after obtaining written informed consent from patients or their parents. In pediatric patients aged 7–17 years, the informed consent was obtained from both the parent and the patients. The need to obtain informed consent was waived by the IRB when the clinical data were obtained retrospectively without molecular analysis.
: Not applicable.
: The authors declare that they have no competing interests.