Breast cancer is no longer considered a single disease.

乳腺癌不再是一种单一的疾病。

youdao

Although age is the biggest single risk factor - 80% of breast cancers are diagnosed in women over the age of 50 - being overweight after the menopause increases your risk even further.

尽管年龄是最大的单一风险因素，乳腺癌女性患者中有80%年届50岁以上，但绝经后的超重会加重患上乳腺癌的风险。

youdao

The study compared a combination of chemotherapy drugs - the standard treatment - to a single drug in patients with early-stage breast cancer aged 65 and older.

本研究比较了一种联合化疗药物(标准治疗方法)与单一药物对65岁及以上老年早期乳腺癌患者的疗效。

youdao

"And people who have breast cancer, they have to do it every single day, the chemotherapy treatment, all the things they have to prepare themselves to do.

VOA: special.2009.11.02

Further complicating the landscape is the realization in the past decade that, rather than being a single disease, breast cancer is at least five distinct diseases, with (to some extent at least) different risk factors, pathology, prognosis, and treatment.

FORBES: After 40 Years Of Research, What Do We Know About Preventing Breast Cancer?

These philosophies are opposites, hard to accommodate in the breast of a single political movement.

ECONOMIST: Lexington

"The clear message is that breast cancer is not a single, or a simple, story, " Friese said.

CNN: Breast cancer awareness: Not so pretty pink