1. Cardiovascular Division, Washington University School of Medicine, St Louis, Missouri2Barnes-Jewish Hospital, St Louis, Missouri3Center for Value and Innovation, Washington University School of Medicine, St Louis, Missouri
2. Cardiovascular Division, Washington University School of Medicine, St Louis, Missouri2Barnes-Jewish Hospital, St Louis, Missouri
3. Center for Value and Innovation, Washington University School of Medicine, St Louis, Missouri
4. Saint Luke’s Mid America Heart Institute, University of Missouri at Kansas City
5. Cardiovascular Division, Washington University School of Medicine, St Louis, Missouri4Saint Luke’s Mid America Heart Institute, University of Missouri at Kansas City