1. Department of Emergency Medicine, University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA.
2. Department of Medicine, and University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA.
3. Department of Medical Education, University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA.
4. Department of Sociology, College of Liberal Arts and Sciences, University of Illinois at Chicago, Illinois, USA.
5. Department of Obstetrics and Gynecology and University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA.
6. Department of Otolaryngology-Head and Neck Surgery, University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA.