61.   Italian researchers believe they have found the last major piece of the puzzle of blood-borne hepatitis.

62.   It now seems that most people can live with the virus, without a trace of illness, as long as their immune systems are healthy, researchers believe.

63.   Logic says that overweight babies grow into overweight adults, but researchers now believe the opposite often is the case.

64.   Many addiction researchers believe memories of being high on drugs fall into this category of emotional memories, and contribute to craving, compulsion and relapse.

65.   Many portrayed knife-wielding gods holding human heads and owl-headed priests presiding over human sacrifices, but few researchers believed they reflected actual practices.

66.   Many researchers believe that stem cells, taken from sources including embryos and aborted fetuses, can be used to treat a variety of the worst diseases.

67.   Most researchers believe that factors other than soy consumption are the primary reasons Asian women have much lower rates of breast cancer than American women do.

68.   Most researchers believe that it was the Monaco institution that let the plant out into the Mediterranean when cleaning out its tanks.

69.   Most researchers believe they will work best when combined with other therapies and with standard chemotherapy drugs to attack the elusive cancer cell on many fronts.

70.   Nevertheless, researchers believe a new deadly strain could appear at any time, leaving people without an effective vaccine.