Breast cancer genes don't have to mean cancer

 作者:昌藕贳     |      日期:2019-03-02 08:03:03
The statistics are disturbing. Women who carry the BRCA1 or BRCA2 genes have an 80 per cent chance of developing breast cancer before the age of 70, according to some analyses. This is enough to convince some women with one of the genes to have their breasts removed as a precaution. Now a study of breast cancer sufferers suggests that many carriers are actually at far lower risk,