Cluster 1264: lower ejection fraction left ventricular normal limit lvef lln institutional 
Cluster 1278: ef ejection fraction ventricular left cardiac echocardiogram heart dimensional uncontrolled 
Cluster 1647: ejection left ventricular fraction cardiac rest function greater arrhythmias disease 
Cluster 1662: fraction liver shortening ejection portal capacity tlc approve pi supplementary 
Cluster 1797: fraction shortening ejection left ventricular fractional cardiac function cardiologist greater 
Cluster 2248: lvef left ejection fraction ventricular cardiac known improve symptomatic rest