 45 181405 of patients with chronic functional gastrointestinal symptoms who underwent upper endoscopy with biopsy met the diagnostic criteria for eosinophilic gastritis andor eosinophilic duodenitis EGEoD 45 181405 of patients with chronic functional gastrointestinal symptoms who underwent upper endoscopy with biopsy met the diagnostic criteria for eosinophilic gastritis andor eosinophilic duodenitis EGEoD 