1. Virginia Mason Medical Center, 7289, Critical Care, Seattle, Washington, United States;
2. National Jewish Health, 2930, Biostatistics, Denver, Colorado, United States
3. Colorado School of Public Health, 144805, Biostatistics, Aurora, Colorado, United States
4. Colorado School of Public Health, 144805, Epidemiology, Aurora, Colorado, United States
5. University of Colorado Denver, 12226, Mathematics, Denver, Colorado, United States
6. National Jewish Health, 2930, Department of Medicine, Denver, Colorado, United States
7. National Jewish Health, 2930, Denver, Colorado, United States
8. Brigham and Women's Hospital Channing Laboratory, 1869, Medicine, Boston, Massachusetts, United States