![Figure][1] Large epidemiologic studies on pericarditis are not available and are difficult to organize because the diagnosis is mostly clinical. However, in an observational study from an Italian urban area of 220,000 inhabitants, pericarditis incidence was reported in 27.7 cases per 100,

中文翻译：

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心包炎和复发性心包炎

影像播放器将修复两极

[图] [1]目前尚无关于心包炎的大型流行病学研究，而且由于诊断主要是临床性的，因此难以组织。但是，在来自意大利220,000市区的一项观察性研究中，心包炎的发病率据报道为每100例27.7例，