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Article History

Received: 14 June 2022

Accepted: 26 April 2023

First Online: 11 May 2023

Declarations

:

: The study protocol was approved by the Institutional Review Board at the Ludwig-Maximilians-University in Munich, Germany (opinion date 31 March 2020, number 20–275). Written informed consent is sought from all participants. In case of minors between the ages of 8 and 17 years, participants and their legal guardian(s) are asked for written informed consent. For children below the age of 8 years, written informed consent is sought from the legal guardian(s). The pseudonymization of the data enables us to provide the participants with individualized results. Personal identifying information is stored in a password-protected database containing only contact details, contact status and contact IDs. The data for each questionnaire response and the other samples are stored in a separate password-protected database containing only ID numbers. It is therefore not possible to draw any conclusions about the identity of the participants and the information they have provided. Compliance with data protection regulations was approved by the official data protection officer of the University Hospital of the LMU Munich, Gerhard Meyer. The data are stored for as long as they are needed to achieve the study objectives. Ten years after the start of the study (and every three years thereafter), the study team will evaluate whether the study objectives for the project have been achieved and, if so, will request the deletion of all personal data.All methods were carried out in accordance with relevant guidelines and regulations.

: Not applicable.

: The authors declare no competing interests.