Serial paraffin sections were made from every tissue and and stained as follows: (1)hematoxylin and eosin stain, (2) immunostaining for Hp, and (3) double-staining using human gastric mucin (M1) immunostaining and alcian blue (AB).

• 每个蜡快行连续切片做(1) 苏木素-伊红染色，(2) Hp免疫组化染色，(3) 双重染色；