环境因素影响肿瘤发生一项中美合作研究表明，包括饮食和生活方式在内的环境因素会影响癌症的发病危险。在调查移民美国纽约城区中国人的癌症死亡情况时，发现有些肿瘤和中国本土人相似，另一些肿瘤则又和纽约白人一致。科研人员把所有因癌症死于纽约和中国天津的人的大量... Environmental Factors Affecting Tumor Development A Sino-U.S. cooperative research has shown that environmental factors including diet and lifestyle influence the risk of cancer. When investigating the cancer deaths of Chinese immigrants from New York City, USA, it was found that some of the tumors were similar to native Chinese people, while others were consistent with white New York. Researchers put all the people who died of cancer in New York and Tianjin, China...