It has been estimated that during that period, for several years, as many as 12 percent of women undergoing testing received the wrong answer -- a negative test result that should have been positive.
据估计，在此期间， 数年间， 有近 12% 接受化验的女性 得到了错误的结果—— 也就是本应该是阳性的 阴性结果。