Comparison of global gene expression of gastric cardia and noncardia cancers from a high-risk population in china. oleh Gangshi Wang, Nan Hu, Howard H Yang, Lemin Wang, Hua Su, Chaoyu Wang, Robert Clifford, Erica M Dawsey, Jian-Min Li, Ti Ding, Xiao-You Han, Carol Giffen, Alisa M Goldstein, Philip R Taylor, Maxwell P Lee