41.   The finding could lead to new drug treatments for people who are genetically predisposed to the spasms, the researchers said.

42.   The finding led critics of the networks to say their efforts had been successful and television executives to insist that the problem had been overstated from the outset.

43.   The findings could lead to the development of new therapies to replace estrogen, which many women chose not to take because of an increased risk of certain cancers.

44.   The findings could lead to a single treatment capable of benefiting both smokers and drinkers.

45.   The findings should lead scientists to focus on developing improved combinations of anti-HIV drugs, Fauci said.

46.   The latest findings might lead to new tests to discover viruses in nature that could cause human disease.

47.   The news can raise hopes that the findings will eventually lead to new therapies.

48.   The researchers say their findings may lead to an early warning of the condition.

49.   The scientists said the findings might lead to the development of pills or injections to prevent HIV infection or to additional AIDS treatments.

50.   The skin-test findings have led the scientists to begin studies exploring use of the staining method to detect other viral diseases.