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Gastric accommodation effects in rats. Each herbal preparation (BF, Benachio-F®; WM, Whalmyungsu®; IB, Iberogast®) or control treatment (3% HPMC) was administered orally before surgery. Intra-bag pressure was increased by 2-mmHg increments every 5 min in anesthetized rats. Starting after an overnight fast, the gastric volume was recorded via the intragastric balloon for 5 min at a pressure of 1 mmHg (baseline). Values are the mean ± SD. **p<0.01 vs. control, Student’s t-test.
