Statements
Data availability statement: The datasets used and/or analyzed in the current study are available from the corresponding author on reasonable request.
Funding statement: This research was supported by the Natural Science Foundation of China (81873594). The funding body had no role in the design of the study and collection, analysis, and interpretation of data and in writing the manuscript.
Conflict of interest disclosure: The authors declare no competing interests.
Ethics approval statement: The study was approved by the Ethics Committee of the affiliated hospital of Qingdao University (No. 20190317). Informed consent was obtained from guardians of the subject.
Patient consent statement: Written informed consent was obtained from the patient for publication of this Case Report and any accompanying images. A copy of the written consent is available for review by the Editor of this journal.
Permission to reproduce material from other sources: Not available.
Clinical trial registration: Not available.