What Is Cancer? - NCI Explanations about what cancer is, how cancer cells differ from normal cells, and genetic changes that cause cancer to grow and spread
Comprehensive Cancer Information - NCI Accurate, up-to-date, comprehensive cancer information from the U S government's principal agency for cancer research
Cancer Staging - NCI Staging is the process of determining how much cancer is within the body (tumor size) and if it has spread Learn about the TNM Staging system and other ways that stage is described
¿Qué es el cáncer? - National Cancer Institute Definición de cáncer, explicación breve de cómo se origina el cáncer en las células del cuerpo, estadísticas básicas de cáncer y enlaces a otros recursos del NCI
Breast Cancer Risk Assessment Tool: Online Calculator - NCI The tool uses a woman's personal medical and reproductive history and the history of breast cancer among her first-degree relatives (mother, sisters, daughters) to estimate absolute breast cancer risk-her chance or probability of developing invasive breast cancer in a defined age interval