1. Department of Emergency MedicineUniversity of Tennessee/ Erlanger Health Chattanooga Tennessee USA
2. Department of Emergency MedicineVerdun Hospital Montreal Quebec Canada
3. Our Lady of Lourdes Medical Center Camden New Jersey USA
4. Thomas Jefferson University Philadelphia Pennsylvania USA
5. University of Pittsburgh and UPM Pittsburgh Pennsylvania USA
6. Department of Sleep MedicinePittsburgh Healthcare System Pittsburgh Pennsylvania USA
7. St. Joseph Healthcare Paterson New Jersey USA