To clarify our point, we contend that prevention begins with understanding and illuminating the root causes of cancer and making efforts to reduce the occurrence of the disease.

FORBES: Pinkwashing: Researchers Take On Avon In Breast Cancer Battle

But this same cancer has also taken root in the border region of Pakistan.

WHITEHOUSE: President Obama on the Way Forward in Afghanistan and Pakistan | The White House

There are a few cases, very rare, very special, in the medical literature in which the cancer from one person took root and grew in another person.

NPR: Startling New Evidence Cancer Is Contagious