Background: Irritable bowel syndrome (IBS) is a common, chronic functional disorder, due to the heterogeneity and multiplicity of symptoms, it is often recurrent in a long term.
背景：肠易激综合症(IBS)是临床常见的一种慢性功能性肠病，临床症状复杂多变，长期反复发作。
Background: Irritable bowel syndrome (IBS) is a common, chronic functional disorder, due to the heterogeneity and multiplicity of symptoms, it is often recurrent in a long term.
背景：肠易激综合症(IBS)是临床常见的一种慢性功能性肠病，临床症状复杂多变，长期反复发作。
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