Damage effect of different genotype of Helicobacter pylori on human gastric epithelial cell line GES-1 in high- and low-risk areas of gastric cancer是什么意思_Damage effect of different genotype of Helicobacter pylori on human gastric epithelial cell line GES-1 in high- and low-risk areas of gastric cancer在线翻译_英语_读音_用法_例句