Xiao Q, Li L, Xie Y, Tan N, Wang C, Xu J, Xia K, Gardner K, Li QQ. Transcription Factor E2F-1 Is Upregulated in Human Gastric Cancer Tissues and Its Overexpression Suppresses Gastric Tumor Cell Proliferation. Analytical Cellular Pathology. 2007 Jan 01;29(4):335–49. doi: 10.1155/2007/147615.