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Changes in compliance scores due to endoscopic procedures between different time points determined by visual analog scale (VAS) based questionnaire. Upper endoscopies were performed on days 0, 7 and 14 of each phase and 30 biopsies were taken during each procedure. Maximal complaint score is 10. The results are presented as scatter plots with means as the lines and were analyzed by ANOVA test (P > 0.05).
