translation.en: But it was better in one group, and that was women under 50 who were pre-menopausal and had dense breasts, and in those women, digital mammography found twice as many cancers, but it still only found 60 percent.
translation.zh: 不过， 对50岁以下女性来说，表现更好， 这一群体还未绝经，且乳腺组织密度较高。 在这个群体中， 数码乳房X光诊断可以找到两倍多的肿瘤， 尽管仍只有60%。