Biostatistical research in the cancer area is primarily conducted through the Biostatistics Core Facility in the Lineberger Comprehensive Cancer Center at UNC. The principal objective of this core facility is to provide statistical analytic collaboration and support to university cancer researchers. Center researchers' statistical needs encompass research/protocol design and data analysis for clinical trials and for epidemiologic, cancer prevention and control, and basic science studies. Technical support (management, preparation, and analysis of data) is also critical to the smooth functioning of this core. The Facility is supporting over 50 institutional clinical trials. Research areas of particular emphasis are: breast cancer mammography and treatment, lung cancer treatment, and prostrate cancer screening and treatment.