窦房结功能障碍的n类适应证为（）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32356' and id < 2571581 and id<>'2571581' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32356' and id > 2571581 and id<>'2571581' order by id asc limit 5