1. Department of Health Policy and Management College of Health Science, Korea University, BK21 FOUR R&E Center for Learning Health Systems, Korea University Seongbuk‐gu, Seoul Republic of Korea
2. Richard A. and Susan F. Smith Center for Outcomes Research in Cardiology Beth Israel Deaconess Medical Center Boston Massachusetts USA
3. Department of Health Administration and Policy College of Health and Human Services, George Mason University Fairfax Virginia USA