LING, T. S., and H.-F. HUI. “Incidence and Risk Factors for Pelvic Lymph Node Metastasis in Early-Stage Endometrial Cancer: A Retrospective Study”. Hong Kong Journal of Gynaecology, Obstetrics and Midwifery, vol. 20, no. 1, Apr. 2023, doi:10.12809/hkjgom.20.1.04.