Relationship between Helicobacter pylori infection (HPI) and chronic gastritis and between HPI and peptic ulcer in children: a study of 56 cases是什么意思_Relationship between Helicobacter pylori infection (HPI) and chronic gastritis and between HPI and peptic ulcer in children: a study of 56 cases在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句