男性患者，出现呕吐,呕吐物为胃内容物， 经检査诊断为中枢性呕吐。该患者呕吐 的病因为

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31862' and id < 2547284 and id<>'2547284' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31862' and id > 2547284 and id<>'2547284' order by id asc limit 5