1. Indiana University-Purdue University Indianapolis, USA
2. Richard L. Roudebush Veterans Affairs Medical Center, Indianapolis, Indiana, USA
3. Regenstrief Institute, Inc., Indianapolis, Indiana, USA
4. Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, USA
5. Baylor College of Medicine, Houston, Texas, USA
6. Veterans Health Administration, Office of Health Informatics, Washington, DC, USA