In addition to protecting healthy tissues against radiotherapy, this same drug may prove useful for preventing side effects of chemotherapy.

除了保护健康组织免受放疗损伤，这种药物同样对预防化疗副作用有效。

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Risks of cognitive side-effects with antiepileptic drugs can add to previous damage by surgery or radiotherapy, and therefore appropriate choice and dose of antiepileptic drug is crucial.

我们已经认识到抗癫痫药物的副反应风险可以加重从前的手术或放疗造成的损伤，因此恰当的选择抗癫痫药物及其剂量是极其重要的。

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Objective To evaluate the efficacy of concurrent chemotherapy with low-dose radiotherapy for esophageal carcinoma and its side effects.

目的观察低剂量放疗同步大剂量化疗治疗食管癌的疗效及毒性反应。

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Dr Prise said that if this effect could be enhanced within tumours it should be possible to develop more effective systems of radiotherapy - perhaps using lower doses to reduce side effects.

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