Zheng, Quan-Qing Prognostic analysis of ovarian cancer patients using the Cox regression model. [electronic resource] - Ai zheng = Aizheng = Chinese journal of cancer Feb 2009 - 170-2 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't Subjects--Topical Terms: AdultAgedAged, 80 and overCombined Modality TherapyEpithelial Cells--pathologyFemaleFollow-Up StudiesHumansKaplan-Meier EstimateMiddle AgedNeoplasm StagingOutcome Assessment, Health Care--methodsOvarian Neoplasms--diagnosisPrognosisProportional Hazards ModelsRetrospective Studies