National research analyzing crack addiction by income and race is just beginning.

In the neighborhood, friends talk about the mother's crack addiction that the police say dates to before the twins were born.

Now all but three or four are there for crack addiction.

He seems to have done what some think is nearly impossible - overcome crack addiction.

But some crack addiction has also struck families in both black and white working-class neighborhoods.

Researchers are finding that crack addiction, under the right conditions, can be successfully treated.

But Robert, who used a variety of drugs, denied a crack addiction.

You have to think of crack addiction as a chronic disease.

All it could do for the crack addiction of the 80's is make the problem worse.

Q. Is there any satisfactory way to treat crack addiction?