“Second-degree heart block”的搜索结果，显示 61-70 项，共有 8478 项
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... atrioventricular (AV) block, this is uncommon, occurring in <25% of fetal LQTS cases. Rather, the most common presentation of fetal LQTS is sinus ...
... atrioventricular (AV) block and are scheduled to undergo pacemaker implantation. In this study additional heart rhythm measurements will be collected during ...
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