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Ethical approval was obtained from the Institutional Review Boards (IRBs) of Heidelberg University Hospital (Ref: S-136\/2022) and the Cambodian Ministry of Health (Ref: 058). Data were collected, stored, and analyzed using the cloud-based ETiCCS platform, which ensured security and confidentiality. All personally identifiable information was excluded from the analysis.","order":3,"name":"Ethics","label":"Ethics approval","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Informed consent was obtained from all participants prior to data collection.","order":4,"name":"Ethics","label":"Consent to participate","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Not applicable. No identifiable individual data or images are included in this manuscript.","order":5,"name":"Ethics","label":"Consent for publication","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The datasets generated and\/or analyzed during the current study are not publicly available. The data can be requested from the corresponding author on reasonable request.","order":6,"name":"Ethics","label":"Data availability","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"No custom code or computational model was used in this study. All analyses were conducted using standard spreadsheet-based calculations.","order":7,"name":"Ethics","label":"Code availability","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"KS, MDA, and ZZ designed the study, KS and ZZ analyzed the data, interpreted the data and drafted the manuscript. 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