PORTEC 1: EBRT vs. Observation in Endometrial Cancer Last updated on Apr 28, 2024 Previous GOG 99: Surgery With or Without EBRT in Intermediate Risk Endometrial Adenocarcinoma Next GOG 122: Whole-Abdominal Irradiation Versus Doxorubicin and Cisplatin Chemotherapy in Advanced Endometrial Carcinoma