Fig. 2. PPI prescription method. A: PPI (single), B: Prokinetics (single), C: PPI+Prokinetics (combination), D: PPI+Prokinetics+gastric mucosal protection (antacid) (combination), E: PPI+ gastric mucosal protection (antacid) (combination), F: H2 receptor blocker (single), G: Others. PPI, proton pump inhibitor.
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