Role of ultrasound in the treatment of pediatric infectious diseases: case series and narrative review.

"Declarations Ethical approvalThis research was performed in accordance with the tenets of the Declaration of Helsinki and was approved by the ethics committee of our institution (Ethical number: 2021-01-003). Conflict of interestNo financial or non-financial benefits have been received or will be received from any party related directly or indirectly to the subject of this article. Consent for publicationSome patients have given their informed consent on the electronic medical record and Japanese law requires to save electronic medical records, but in this review, it also includes patients who have already completed treatment and have not been followed up in our hospital. Therefore, ethinical permission was obtained from the ethics committee of our hospital. Conflict of interest No financial or non-financial benefits have been received or will be received from any party related directly or indirectly to the subject of this article."

"Funding None."