美国食品药物管理局（FDA)引用了独立国家癌症研究所的一项方案成果，尽管使用手机的使用量急剧上升，1987年至2005年间，脑癌发生的数量并没有增加。
FDA also cites a separate National Cancer Institute program finding that, despite the dramatic increase in cell phone use, occurrences of brain cancer did not increase between 1987 and 2005.
本例肾细胞癌瘤体巨大，伴发小囊肿形成、局灶性出血和坏死。
This large renal cell carcinoma shows cyst formation and foci of hemorrhage and necrosis.
这类药物名叫检查点抑制剂，已经被食品与药物管理局批准，用于治疗晚期黑色素瘤、霍奇金淋巴瘤，以及肺癌、肾癌和膀胱癌。
These drugs, called checkpoint inhibitors, have been approved by the Food and drug Administration to treat advanced melanoma, Hodgkin lymphoma and cancers of the lung, kidney and bladder.
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