1.   One area of study for the researchers has been thrush, a painful mouth infection that afflicts nearly all AIDS patients.

2.   One of the most promising uses for the drug is for the treatment of the painful mouth ulcers that sometimes appear in patients with late-stage AIDS.

3.   Rockville, Maryland-based EntreMed is developing a thalidomide drug for use in healing the excruciatingly painful mouth ulcers that often occur in AIDS patients.

4.   Thalidomide has shown promise in treating other grave conditions such as the severe wasting and painful mouth ulcers common in the final stages of AIDS.

5.   They include severe infections, bleeding, organ damage and painful mouth sores that may make it impossible to eat for weeks on end.

6.   Pratt said the painful mouth blisters cause animals to have problems eating and drinking in the meantime.

7.   Pratt said the painful mouth blisters cause animals to have problems eating and drinking.