Received: 10 September 2021
Accepted: 24 January 2022
First Online: 31 March 2022
: The study was conducted according to the guidelines of the Declaration of Helsinki, and approved by the Institutional Review Board (IRB) at Ann & H. Lurie Children’s Hospital of Chicago (IRB 2019-2951). Informed consent was waived by the IRB ethics committee considering the retrospective nature of the study. Information is recorded by the investigator in such a manner that the identity of the participants cannot readily be ascertained directly or through identifiers linked to the participants, the investigator does not contact the participants, and the investigator will not re-identify participants; The research involves only information collection and analysis involving the investigator’s use of identifiable health information when that use is regulated under the HIPAA Privacy Rule, subparts A and E, for the purposes of “health care operations” or “research” as those terms are defined at 45 CFR 164.501 or for “public health activities and purposes” as described under 45 CFR 164.512(b).
: Not applicable.
: The authors declare that they have no competing interests.