11.   Dickson said he was a known drug dealer.

12.   Doxorubicin is a known anti-cancer drug.

13.   He said that he and a group of friends were arrested one night in Washington during a raid on an apartment of a known drug dealer.

14.   He was a typical defendant, a rough guy with a criminal history and a known drug problem.

15.   It was not the gun Sullivan described and, more important, it was found in possession of a known drug dealer and suspected killer.

16.   Samaranch kept quiet, allowing a known drug user into the Sydney Games.

17.   Some federal insiders now believe that the stream of oddball witnesses, who ranged from jail inmates to known drug dealers, were just leading investigators on.

18.   The big companies have clung to the known drugs because they worked so well for so long.

19.   The difference they say is a little known drug called naltrexone.

20.   The list of drugs that slow the rate of incubation is increasing, and some known drugs appear to help, including the antifungal drug amphotericin B.