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Immunohistochemical staining results of LPA2 expression of different groups: (A) positive expression of LPA2 in normal gastric mucosa tissue; (B) positive expression of LPA2 in low grade GIN; (C) positive expression of LPA2 in high grade GIN; (D) positive expression of LPA2 in gastric adenocarcinoma tissue); magnification 20×. LPA2 – lysophosphatidic acid receptor-2; GIN – gastric intraepithelial neoplasia.
