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The study was registered in the German Clinical Trial Register \u2013 Nr. DRKS00021520. The study is being conducted across multiple sites. All patient recruitment and trial data collection is being undertaken in accordance with Good Clinical Practice (GCP). The design, analysis, interpretation of data, drafting, and revisions conform the Helsinki Declaration, the Committee on Publication Ethics (COPE) guidelines (), the STARD checklist, available through the EQUATOR (enhancing the quality and transparency of health research) network (). Only endometrial cancer patients\u2009\u2265\u200918 years listed for surgical treatment with sentinel lymph node mapping, with no history of other types of cancer and who provide a valid written informed consent (obtained from participants and\/or their legal guardians) will be considered potentially eligible for the study.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval and consent to participate"}},{"value":"Not applicable- as the manuscript does not contain any identifiable information or images of study participants.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The co-author and study coordinator of this project, Alessandra Mescalchin, is an employee of Life Science, Sysmex Europe SE, Germany, the EMEA regional headquarter of the funder, Sysmex Corporation (Kobe, Japan) that had a role in the design of the study. Therefore she has a competing interest.All other authors declare no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"12"}}