1. University of Iowa Carver College of Medicine Iowa City Iowa USA
2. Department of Health Promotion and Human Behavior School of Public Health, Kyoto University Graduate School of Medicine Kyoto Japan
3. Division of Infectious Diseases, Department of Internal Medicine University of Iowa Carver College of Medicine Iowa City Iowa USA
4. University of Iowa Iowa City Iowa USA
5. Department of Emergency Medicine, Department of Anesthesia, Department of Epidemiology University of Iowa Carver College of Medicine Iowa City Iowa USA
6. Department of Emergency Medicine The University of Iowa Carver College of Medicine Iowa City Iowa USA