与癌症的三大危害性迥然不同的是，良性肿瘤具有自限性，不侵犯或不转移特征。
These three malignant properties of cancers differentiate them from benign tumors, which are self-limited, and do not invade or metastasize.
丹麦哥本哈根肿瘤流行病学协会的研究人员通过对中枢神经系统的研究发现，长期使用手机的人群与不使用手机的人群癌症发病率几乎是一样的。
Researchers led by the Institute of Cancer Epidemiology in Copenhagen found cancer rates in the central nervous system were almost the same in both long-term mobile phone users and non-users.
Tsimberidou博士和她的同事挑选了患有晚期癌症的志愿者(这些患者的肿瘤是由单一的、已知的突变引起的)，试验方法与第一期相同。
Dr Tsimberidou and her colleagues selected volunteers with late-stage cancer whose tumours were caused by single, known mutations and did the equivalent of a phase I trial on them.
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