After five years, death rates for all cancers fell by 35% and for gastrointestinalcancers by 54%.
五年后，所有癌症的死亡率下降了35%，而胃肠道癌症的死亡率则下降了54%。
2
He also studied specific cancers of the gastrointestinal tract, lung and breast.
他甚至研究了一些具体的癌症，比如胃癌，肠癌，肺癌和乳腺癌。
3
The scientists, who come from Switzerland, Canada and the US are experts in human nutrition and the pathology of various cancers such as gastrointestinal and colorectal cancer.