1. Los Angeles County + University of Southern California (LAC+USC) Medical Center , Los Angeles, California , USA
2. Department of Medicine, Birmingham Veterans Affairs (VA) Medical Center , Birmingham, Alabama, Birmingham, Alabama , USA
3. King Abdulaziz Medical City , Jeddah , Saudi Arabia
4. Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham , Birmingham, Alabama , USA
5. Division of Infectious Diseases, Department of Medicine, McGill University , Montreal , Canada
6. Division of General Internal Medicine, Department of Medicine, McGill University , Montreal, Quebec , Canada
7. Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital , Boston, Massachusetts , USA
8. Harvard Medical School , Boston, Massachusetts , USA
9. Institute for Infectious Diseases, University of Bern , Bern , Switzerland