Morgan R W, Vakil D V
Can Med Assoc J. 1974 Nov 16;111(10):1105-7.
Breast cancer, or its effects, may be preventable. Childbearing at an early age will confer some protection. Until there are other methods of primary prevention the physician must concentrate on secondary prevention, including screening. In presenting risk factors as criteria for screening we have attempted to make rational the use of screening technology. We should not easily accept screening for breast cancer as of proved value. Rather we must encourage clinical trials of various screening methods. In the meantime, while we engage in a moderate amount of screening we do so under the Scottish verdict of "not proven".
乳腺癌或其影响可能是可以预防的。早育会提供一定的保护作用。在有其他一级预防方法之前，医生必须专注于二级预防，包括筛查。在将风险因素作为筛查标准时，我们试图使筛查技术的使用更加合理。我们不应轻易接受乳腺癌筛查具有已证实的价值这一观点。相反，我们必须鼓励对各种筛查方法进行临床试验。与此同时，在我们进行适度筛查时，我们是在苏格兰那种“未经证实”的判定下进行的。
