Antineoplastic Combined Chemotherapy Protocols/therapeutic use; Carcinoma, Endometrioid/drug therapy; Carcinoma, Squamous Cell/drug therapy; Endometrial Neoplasms/drug therapy; Adult; Aged; Antineoplastic Combined Chemotherapy Protocols/adverse effects; Carboplatin/administration & dosage; Carcinoma, Endometrioid/mortality; Carcinoma, Endometrioid/pathology; Carcinoma, Endometrioid/radiotherapy; Carcinoma, Endometrioid/surgery; Carcinoma, Squamous Cell/mortality; Carcinoma, Squamous Cell/pathology; Carcinoma, Squamous Cell/radiotherapy; Carcinoma, Squamous Cell/surgery; Chemotherapy, Adjuvant; Disease-Free Survival; Docetaxel; Drug Administration Schedule; Endometrial Neoplasms/mortality; Endometrial Neoplasms/pathology; Endometrial Neoplasms/radiotherapy; Endometrial Neoplasms/surgery; Female; Humans; Kaplan-Meier Estimate; Middle Aged; Neoplasm Grading; Neoplasm Staging; Proportional Hazards Models; Radiotherapy, Adjuvant; Retrospective Studies; Taxoids/administration & dosage; Time Factors; Treatment Outcome; Young Adult