Avoiding and then adjusting for any such bias, however, is at the heart of the work of the Oxford cancer epidemiology unit.

然而，避免和调整诸如此类的偏见是牛津大学癌症流行病学部门的工作核心。

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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.

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。

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That work was in the July issue of Cancer Epidemiology, Biomarkers & Prevention.

这项研究发表在6月份的《癌症流行病学、生物标记物与预防》上。

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The good news is that progress against cancer has been made on many fronts,says Susan Gapstur, vice president of Epidemiology at the American Cancer Society and co-author of a commentary in the journal.

VOA: standard.2010.03.25

Dr Paolo Boffetta, of the Unit of Environmental Cancer Epidemiology of the International Agency for Research on Cancer in Lyon, France, who worked on the study, said: "We do not really know if asthma as such causes the increased risk".

BBC: Women are at greater risk than men

Professor Valerie Beral, who is head of Cancer Research UK's Cancer Epidemiology Unit in Oxford, said this study was in line with previous research, although the figures differed.

BBC: Pill increases breast cancer risk

Epidemiology has a long list of accomplishments, including most famously identification of the association of smoking with risk of lung cancer, but also encompassing the identification of many other exposures, medications, and infectious agents as risk factors or protective factors for specific diseases.

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