51.   And the researchers say cholesterol levels drop with tamoxifen use.

52.   And steroid use, researchers say, exposes girls to the same severe health risks, but with the added potential of destroying their ability to bear children.

53.   And the lack of specialized help contributes to the increased behavioral and social problems among autistic adults living outside their family homes, the researchers say.

54.   And researchers say they are still trying to conclusively answer such questions about the drug as its potential for addiction and tolerance.

55.   And their undisturbed condition makes a find of such rare antiquity even more valuable, the researchers say.

56.   And that, researchers say, affects everything from air quality to energy costs, from obesity to crime rates.

57.   And what they found, researchers say, is that the butterfly, known also as Melitaea cinxia, acts exactly as one would expect based on metapopulation theory.

58.   And, researchers say, larger animals have survived because all sea turtles are protected under the Endangered Species Act.

59.   And while some researchers say there is still a chance that fiber helps prevent colon cancer, others say it is time to stop telling people that it can.

60.   Another factor, some researchers say, may be a result of timing.