由国家癌症研究院资助的这次试验，涉及644名患者，大部分是患有乳腺癌的妇女，她们在美国23家癌症诊所接受化疗。

The trial, financed by the National cancer Institute, involved 644 patients, mostly women with breast cancer, who were undergoing chemotherapy at 23 oncology practices in the United States.

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Kleinman当时在美国国家卫生研究院的牙科研究所工作，她说：“当时关于癌症的研究工作受到的支持不多。”

Kleinman was working at NIH's dental-research institute, and, she says, "there was not a lot of support for work in cancer there at the time."

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更早期，他在美国国家健康研究院从事癌症研究。

Earlier, he conducted cancer research at the US National Institutes of Health.

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