1. University of Louisville; Louisville KY USA
2. Bethesda North Hospital; Cincinnati OH USA
3. Iowa Heart Center; West Des Moines IA USA
4. Oregon Health Science University; Portland OR USA
5. University of Kansas; Kansas City KS USA
6. University of Wisconsin; Madison WI USA
7. University of Alabama; Birmingham AL USA
8. Des Moines University; Des Moines IA USA
9. Catholic Health Initiatives; Lexington KY USA
10. Franciscan Health; Indianapolis IN USA