Prediction of lymphovascular invasion of gastric cancer based on contrast-enhanced computed tomography radiomics oleh Si-Yu Zhen, Si-Yu Zhen, Si-Yu Zhen, Yong Wei, Ran Song, Xiao-Huan Liu, Pei-Ru Li, Xiang-Yan Kong, Han-Yu Wei, Wen-Hua Fan, Chang-Hua Liang, Chang-Hua Liang, Chang-Hua Liang