| Affiliation: | 1. Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX;2. Division of Cardiology, University of Texas Southwestern Medical Center, Dallas, TX;3. Division of Cardiology, University of Iowa Carver College of Medicine, Iowa City, IA;4. Hardin Library for the Health Sciences, University of Iowa Carver College of Medicine, Iowa City, IA;5. Division of Pulmonary, Critical Care, and Occupational Medicine, University of Iowa Carver College of Medicine, Iowa City, IA;6. Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO;7. Knowledge and Evaluation Research Unit and the Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN;8. Division of Biomedical Informatics, Department of Internal Medicine, University of California San Diego, La Jolla, CA |
