慢性缩窄性心包炎最常见的病因是(    )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26311' and id < 2201776 and id<>'2201776' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26311' and id > 2201776 and id<>'2201776' order by id asc limit 5