1. Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO (K.E.J.M.).
2. Center for Health Economics and Policy, Institute for Public Health at Washington University, St. Louis, MO (K.E.J.M.).
3. Department of Health Management and Policy, College for Public Health and Social Justice (K.J.), Saint Louis University, St. Louis, MO.
4. Department of Health and Clinical Outcomes Research, School of Medicine (K.J.), Saint Louis University, St. Louis, MO.