利用免疫系统还显示出了对抗皮肤癌和某些类型肺癌的潜力。但是对于其它癌症，免疫系统被认为是没有办法时的最后一招。
Using the immune system has also shown promise against skin cancer and some lung cancers. But for other cancers, immunotherapy is considered a last resort.
对于其它的癌症类型，它们提供了一种额外的治疗武器，但是获益较小，有时产生新的副作用。
For other cancer types, they have provided an additional therapeutic weapon, but with smaller benefits and sometimes new side effects.
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