По-английски читаешь? http://educate-yourself.org/cn/2001/ultrasoundandbraindamage19dec01.shtmlhttp://www.aimsusa.org/ultrasnd.htmhttp://www.compleatmother.com/ultrasound_danger.htmhttp://www.newscientist.com/article/dn1639-fetuses-can-hear-ultrasound-examinations.html