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  1. Risk Factors for Cancer - NCI - National Cancer Institute

  2. Risk Factors and Cancer | CDC

  3. Cancer risk: What the numbers mean - Mayo Clinic

  4. Cancer - World Health Organization (WHO)

  5. Cancer Causes and Prevention - NCI - National Cancer Institute

  6. Cancer - Symptoms and causes - Mayo Clinic

  7. Understanding Cancer Risk | Cancer.Net

  8. Cancer Risk and Prevention | Cancer Causes | Stay Healthy

  9. Overview of Risk Factors | The Cancer Atlas

  10. Cancer Prevention Overview - NCI

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