21.   The finding could help scientists in their long-term quest to develop effective therapies to treat the virus or perhaps even a vaccine to prevent infection.

22.   The findings hold promise for developing a test for the disease and could lead to effective therapies for it.

23.   The study suggests that a two-drug combination can be an effective therapy against HIV when used properly, Frost said.

24.   The surprising findings from the earlier studies contributed to a widespread hope that antibiotics would be an effective therapy for coronary artery disease.

25.   There is no effective therapy for the disease, which can occur only when both parents are carriers of the recessive Canavan gene.

26.   There is no known cure, no effective therapy.

27.   They believe that if they can precisely chart the emotional roller coaster that follows, they can come up with a more effective therapy.

28.   This holds out the promise of longer-term effective therapy.

29.   What is the most effective anti-HIV therapy?

30.   When it comes to treating depression, those who espouse drugs as the most effective therapy and those who champion psychotherapy have often been at war.