Trudeau, Maureen E Prognostic factors affecting the natural history of node-negative breast cancer. [electronic resource] - Breast cancer research and treatment Jan 2005 - 35-45 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0167-6806 Standard No.: 10.1007/s10549-004-1368-y doi Subjects--Topical Terms: Breast Neoplasms--diagnosisDisease-Free SurvivalFemaleHumansMiddle AgedMultivariate AnalysisOntario--epidemiologyPrognosisProportional Hazards ModelsSurvival Rate