The aim of this study was to examine the effect of measurement bias in breast cancer and to create a more rational T-size categorization in tumor-node-metastasis staging in response to smaller, screen-detected cancers and measurement bias.
Department of Surgical Oncology, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Ave., Suite T2-102, Toronto, Ontario, M4N 3M5 Canada.