1. Reno School of Medicine, University of Nevada, Reno, Nevada, USA.
2. Department of Head and Neck Surgery, Los Angeles David Geffen School of Medicine, University of California, Los Angeles, California, USA.
3. Department of Family Medicine, University of California, Irvine, California, USA.
4. Internal Medicine Residency, St. Mary Medical Center, Long Beach, California, USA.
5. Stead Family Department of Pediatrics, University of Iowa Healthcare, Iowa City, Iowa, USA.