Methods One hundred and five children with H. pylori infection identified by 13C-UBT were randomly assigned into Group A (n = 60) and Group B (n = 45).

• 方法经13C-尿素呼吸试验(13C-UBT)证实为幽门螺杆菌感染的反复腹痛儿童105例，随机分为治疗A组60例，给予埃索美拉唑、克拉霉素、阿莫西林三联治疗，疗程1周；