Objective To clarify the relationship between ABO blood group and the development of duodenal ulcer(DU)in aspects of gastric acia and Hp infection.

• 目的 从胃酸及幽门螺杆菌 (H·pylori)感染角度探讨ABO血型影响十二指肠球部溃疡 (DU)发病的因素。