Correction to: BMC Pediatr 21, 44 (2021)

https://doi.org/10.1186/s12887-021-02498-2

Following the publication of the original article [1], the Conflict of interest statement tagging does not follow tagging guidelines to include an attribute to make it machine-readable.

Tagging error. The <DataAvailability> element includes the Data Availability, Ethics, Consent for publication, and Competing Interests statements.

An <Ethics> element is missing; it should hold the Ethics, Consent for publication, and Competing interests statements.

The original article has been corrected.