1.   Doctors say cervical cancer often has no symptoms.

2.   Although for many years cancer researchers did not believe that viruses caused the disease, scientists now know that several cancers have viral causes.

3.   Already, researchers have discovered that cancers have types just the way blood does, but only more of them.

4.   A friend of mine recently found out that cancer has conquered vast regions of his body.

5.   A few decades ago, it was widely believed that chest X-rays could save lives by finding lung cancers before people had symptoms.

6.   All women whose cancer has spread become resistant, usually within a year or two, Osborne said.

7.   Breast cancer has a high survival rate if detected early.

8.   DeWitt had had cancer for the last year and a half, said her brother, the photographer Bruce Weber.

9.   Each case is different, each cancer has its own unique complexities.