1. Department of Emergency MedicineSt. Joseph Mercy Hospital Ann Arbor Michigan USA
2. Section of Emergency MedicineThe University of Chicago Chicago Illinois USA
3. Department of Emergency MedicineUniversity of South Alabama Mobile Alabama USA
4. Department of Emergency MedicineLincoln Medical and Mental Health CenterWeill Cornell Medical College of Cornell University Bronx New York USA
5. Division of CardiologyIcahn School of Medicine at Mount Sinai New York New York USA
6. Department of Emergency MedicineUniversity of Michigan Ann Arbor Michigan USA