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Severe left ventricular systolic dysfunction after permanent pacemaker implantation: Should we pause before upgrading to biventricular pacing? - ScienceDirect
![Severe left ventricular systolic dysfunction after permanent pacemaker implantation: Should we pause before upgrading to biventricular pacing? - ScienceDirect Severe left ventricular systolic dysfunction after permanent pacemaker implantation: Should we pause before upgrading to biventricular pacing? - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0972629219300464-gr1.jpg)
Severe left ventricular systolic dysfunction after permanent pacemaker implantation: Should we pause before upgrading to biventricular pacing? - ScienceDirect
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