国家癌症协会正在努力增强药效。
The National Cancer Institute is trying to strengthen the shots.
访问国家癌症协会的网站可以获得目前有哪些临床试验正在进行。
To see the current list of lung cancer clinical trials, visit the National Cancer Institute's site.
美国国家癌症协会的科学家询问了超过五十万人以得到他们在过去六年的确切饮食细节。
Scientists at the National Cancer Institute in the United States asked more than half a million people to provide precise details of their diet over six years.
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