After exclusion of patients with incomplete data (n = 18), histologic findings of BE or gastroesophageal junction IM (n = 134), or no gastric biopsies or fundic polyp/gastric cardia biopsies only (n = 83), 57 patients were included in the final analysis (TFF3+, n = 44; TFF3-, n = 13).5 The gene discussed is TFF3; the disease is Barrett esophagus.