Assessing Preoperative Grading Discrepancies in Endometrial Cancer: Impact of Biopsy Method and Clinical Risk Factors. - Dofutsu K; Yagi T; Unno H; Kubota S; Masuda K; Sumikura T; Matsuoka K; Shimazu K; Takemura M; Morishige KI (The journal of obstetrics and gynaecology research, 2026)