1. Department of Health Policy and Management, College of Health Science, Korea University , Seoul , Republic of Korea
2. BK21 FOUR R&E Center for Learning Health Systems, Korea University , Seoul , Republic of Korea
3. Center for State Health Policy, Institute for Health, Health Care Policy, and Aging Research, Rutgers University , New Brunswick, NJ , United States
4. Department of Family Medicine and Community Health, Robert Wood Johnson Medical School , New Brunswick, NJ , United States