61.   Researchers looked only at the visual images in the videos, without regard to the messages in the music itself.

62.   Researchers are looking at ways of combining such an antibody with an HIV vaccine to boost the immune response.

63.   Researchers are now looking for corroborative evidence in archives in Moscow.

64.   Researchers have looked at other possible culprits to explain age-related memory loss.

65.   Researchers have looked at sleep deprivation in animals to determine, on the cellular level, what happens without sleep.

66.   Researchers also are looking at introducing anti-retroviral agents, similar to those taken orally, as a way to prevent HIV from gaining a foothold.

67.   Researchers are also looking at what happens to the immune system in early life.

68.   Researchers are looking at the roles that other food compounds may play in health.

69.   Researchers are looking for a heart that can be essentially maintenance-free for several years, to avoid repeated surgeries and hospitalization.

70.   Researchers are looking for women who are already planning a mastectomy.