子宫内膜癌的确切发病原因尚未明确，下 列哪项不属于高危因素(       )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26983' and id < 2239895 and id<>'2239895' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26983' and id > 2239895 and id<>'2239895' order by id asc limit 5