It also allows them to determine if the cancer is getting better with treatment or not responding.
When a child's cancer does not get better or comes back, parents may not be sure about whether to continue treatment and, if so, what kind.
And the cancer got her to start living, because she was afraid of people before - they had hurt her.
Other trials test treatments for patients whose cancer has not gotten better.
It never worked until just before the cancer got her.
Once the cancer gets you, you might as well make your will.
Doctors are learning that cancer gets more complex with age.
Now it seemed the cancer had finally gotten around to what the froggies called the piece de resistance.
Are we just going to wait for death, just coast until cancer gets us?
They took the eye, but the cancer had already gotten into his brain.