71.   In this case, scientists approached donors and informed them that their eggs and sperm would be used to develop embryos for stem-cell research.

72.   In this case, scientists approached donors and informed them that their eggs or sperm would be used to develop embryos for stem-cell research.

73.   In the Virginia case, scientists approached donors and informed them that their eggs and sperm would be used to develop embryos for stem-cell research.

74.   In return, North Korea must shut down its outdated nuclear facilities suspected of being used to develop atomic bombs.

75.   In this case, the scientists approached donors and informed them that their eggs and sperm would be used to develop embryos for stem-cell research.

76.   It then signed a lucrative satellite television deal, funds from which will be used to develop the national stadium.

77.   It was a warning to Seoul, which has hesitated to provide lightwater reactors to North Korea to replace reactors believed to have been used to develop nuclear weapons.

78.   Last week, President Boris Yeltsin tightened government controls over the export of Russian technology that may be used to develop missiles.

79.   Moreover, the product of this external secretion is also an extremely precious substance that may be used to develop greater psychic, mental and spiritual powers.

80.   President Boris Yeltsin has tightened government controls over the export of Russian technology that may be used to develop missiles, his office said Tuesday.