1 Department of Emergency Medicine, MSC 8072-17-5001, Washington University School of Medicine, 660 S. Euclid Avenue, Saint Louis, MO 63110-1010, United States of America. Electronic address: a.burtle@wustl.edu.
2 Department of Emergency Medicine, MSC 8072-17-5001, Washington University School of Medicine, 660 S. Euclid Avenue, Saint Louis, MO 63110-1010, United States of America. Electronic address: mullinsm@wustl.edu.
3 Department of Emergency Medicine, MSC 8072-17-5001, Washington University School of Medicine, 660 S. Euclid Avenue, Saint Louis, MO 63110-1010, United States of America. Electronic address: lissd@wustl.edu.