由于肉眼检查不能识别某些皮肤变色和皮肤癌，诊所的皮肤科医生需要对病人的皮肤组织进行测试。
Because visual inspection cannot reliably distinguish certain skin discolorations from skin cancers, dermatologists at clinics have needed to perform tests of skin tissue taken from patients.
“它意味着，考虑病人的文化根源、语言，以及他们这样识别自己，”她说。
"It means thinking about patients' culture of origin, theirlanguage, and how they identify themselves, " she said.
研究人员发现一种“电子鼻子”能够从肺癌或头颈部癌症病人的呼吸中识别癌症的化学信号。
Researchers found an "electronic nose" was able to identify chemical signals of cancer in the breath of patients with lung or head and neck cancer.
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