Funding for this research was provided by:
Korean Health Technology R&D Project, Ministry for Health & Welfare, Republic of Korea (HI14C3417)
Received: 11 September 2019
Accepted: 22 June 2020
First Online: 2 July 2020
Ethics approval and consent to participate
: This case report was reviewed by the Institutional Review Board of Seoul St. Mary’s Hospital and it was approved by an ethics committee (KC19ZESE0576).
: Written consent was obtained from the patient’s mother for publication of the study because the patient died at the time of writing the manuscript.
: The authors declare that they have no competing interests.