1. Department of Medicine, National Jewish Health, Denver, CO, USA, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
2. Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA, Department of Academic Affairs, National Jewish Health, Denver, CO, USA, Department of Medicine, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora,
CO, USA
3. Global Tuberculosis Institute, Rutgers New Jersey Medical School, Newark, NJ, USA (retired)