Research Article

Lack of Association between Epidermal Growth Factor or Its Receptor and Reflux Esophagitis, Barrett’s Esophagus, and Esophageal Adenocarcinoma: A Case-Control Study

Figure 4

Violin plots of the differences in mRNA expression of the epidermal growth factor (EGF) and its receptor (EGFR) in the tissues with/without visible pathological changes from patients with gastroesophageal reflux disease () divided into two groups according to their EGF-EGFR genotypes: +61 A>G EGF (rs4444903) and +142285 EGFR G>A (rs2227983) Kruskal-Wallis or Mann–Whitney tests were used.