You may recall a year ago when a firestorm erupted after the United States Preventive Services Task Force reviewed the world's mammography screening literature and issued a guideline recommending against screening mammograms in women in their 40s.
你大概可以想起来，一年前 那次事件大爆发， 美国预防服务工作组 审查了全球乳房X光造影诊断技术的文献， 发布了一个准则 表示不推荐四十岁的女性 使用乳房X光造影诊断。