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All images were irreversibly anonymized prior to analysis. In accordance with institutional policy and applicable national regulations governing the secondary analysis of fully anonymized clinical data, formal ethics committee\/institutional review board (IRB) approval was not required for this study, and the requirement for informed consent to participate was waived. The responsible institutional body is the Research Ethics Committee of Vasei Hospital (Sabzevar, Iran); therefore, no ethics approval reference number applies. All procedures were conducted in accordance with the Declaration of Helsinki and its later amendments. For external validation, we additionally used a publicly available de-identified dataset, for which no additional ethics approval or participant consent was required for secondary analysis.","order":1,"name":"Ethics","label":"Ethics approval and consent to participate","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Not applicable.","order":2,"name":"Ethics","label":"Consent for publication","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare no competing interests.","order":3,"name":"Ethics","label":"Competing interests","group":{"name":"EthicsHeading","label":"Declarations"}}],"article-number":"405"}}