Examination of the esophago-gastric junction area and fundus by retroflexion of the flexible-tip gastroscope: an analysis of 100 consecutive attempts.
D004943:Esophagogastric Junction; D020699:Gastroscopes; D006548:Hernia, Diaphragmatic / Q000175:diagnosis; D006801:Humans; D008722:Methods; D013270:Stomach