Vaginal cuff brachytherapy practice in endometrial cancer patients: a report from the Turkish Oncology Group - Bolukbasi, Yasemin; Onal, Cem; Ozsaran, Zeynep; Senyurek, Sukran; Yasar Akdemir, Eyub; Selek, Ugur; Yildiz, Ferah (Journal of Contemporary Brachytherapy, 2021)