41.   Researchers are currently studying the effects of time-release medicines to prevent heart attacks and sudden death.

42.   Researchers are now studying whether the barrier mechanism in the placenta occurs elsewhere in the human body.

43.   Researchers will study most closely the technology, entertainment, banking and biotechnology sectors.

44.   Researchers are studying other therapies that may help even more patients.

45.   Researchers are studying whether immunotherapy can be administered by nasal sprays.

46.   Researchers have even studied differences in gravity over the region to assess what lies beneath.

47.   Researchers studied high-blood pressure patients in Seattle.

48.   Researchers study this in hopes of finding ways to slow age-related decline.

49.   Researchers then studied the samples for the hormones indicating fertilization and, later, implantation.

50.   Researchers there studied a group of Nairobi prostitutes who, despite thousands of unprotected sex sessions, did not get infected.