Methods:Gastric mucosa was taken from 186 patients with gastric cancer to detect Hp-L by Gram staining and immunohistochemistry staining.

• 方法:取186例胃癌患者胃窦和胃体黏膜组织常规切片后经革兰氏染色和免疫组化染色镜检Hp-L型细菌。