比如，事实证明对过度表达的细胞表面蛋白进行靶向治疗要比发现导致这种过度表达的诱因更加困难。

For example, targeting the cell surface protein overexpression may prove more difficult than finding what causes the overexpression further upstream and homing in on that.

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最令医生头疼的事莫过于劝说一个表面看似很正常的病人接受彻底的治疗。

ONE of the hardest tasks doctors face is convincing an outwardly well patient that he needs drastic treatment.

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美国化学学会的一次会议上介绍了这种新型的隐形眼镜，它们附在眼球表面，缓慢释放出药物，可以有效改善治疗。

The new lenses, which slowly release the drugs and hold them in place, could vastly improve treatment, an American Chemical Society conference has heard.

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