BETHESDA, Md., Jan. 16, 2015 /PRNewswire-USNewswire/ -- A team of scientists from the United States and China has discovered new genetic insights that could change the way oncologists treat gastric cancer, the fourth most common cancer and the second leading cause of cancer death in the world. The investigators, who tested hundreds of gastric cancer tissue samples using advanced whole-genome sequencing technology, published their discovery online on January 12 in the Proceedings of National Academy of Sciences.