61.   No long-term studies have proven irradiation safe, says executive director Michael Colby.

62.   Not everyone is convinced that computational studies have much to offer a science like linguistics, in which the data are so incomplete and indecisive.

63.   Nonetheless, the studies must have some valid scientific purpose or they may be halted by federal regulators.

64.   Of course, this study has its limits when attempting to apply its lessons everywhere.

65.   One researcher conceded that studies have limitations.

66.   Other studies have had similar findings, showing modest increases in risk that drop back to average within about five years after a woman stops taking the hormones.

67.   Other studies have not.

68.   Other studies have shown beneficial effects of breast-feeding followed by strict diets in which certain foods are eliminated.

69.   Other studies of anti-depressants in young people have shown little benefit, but those studies often had methodological problems and involved older types of antidepressants, Emslie said.

70.   Our business studies have all sorts of links with the corporate sector here.