Bing found the following results
  1. What Is Cancer? - NCI - National Cancer Institute

  2. Cancer - Symptoms and causes - Mayo Clinic

  3. Cancer - Wikipedia

  4. Cancer - World Health Organization (WHO)

  5. What is Cancer? | Cancer Basics | American Cancer Society

  6. All About Cancer | American Cancer Society

  7. Information and Resources about Cancer: Breast, Colon, Lung, …

  8. Cancer: Types, Causes, Treatment, and Prevention - Healthline

  9. Comprehensive Cancer Information - NCI

  10. What Is Cancer? Symptoms, Signs, Types & Causes - Cleveland Clinic