Influence of initial periodontal therapy on the presence of oral Helicobacter pylori and the relation of genotype of Helicobacter pylori in oral cavity and with that in stomach是什么意思_Influence of initial periodontal therapy on the presence of oral Helicobacter pylori and the relation of genotype of Helicobacter pylori in oral cavity and with that in stomach在线翻译_英语_读音_用法_例句