1. Health Sciences Library and Informatics Center, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
2. Department of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA
3. Department of Medicine, Stanford University School of Medicine, Stanford University, Palo Alto, California, USA
4. Department of Family Medicine, Centura Health, Westminster, Colorado, USA
5. Project for Pride in Living, Minneapolis, Minnesota, USA
6. Department of Medicine, University of Virginia, Charlottesville, Virginia, USA
7. Minneapolis Medical Research Foundation, Minneapolis, Minnesota, USA
8. Department of Medicine, Hennepin County Medical Center, Minneapolis, Minnesota, USA