1. Center for Public Health Systems Science, George Warren Brown School of Social Work, Washington University in St. Louis; St. Louis Missouri USA
2. Department of Neurology; Washington University in St. Louis School of Medicine; St. Louis Missouri USA
3. Becker Medical Library, School of Medicine; Washington University in St. Louis; St. Louis Missouri USA
4. Division of General Medical Sciences, School of Medicine; Washington University in St. Louis; St. Louis Missouri USA