1. School of Medicine, Louisiana State University Health Sciences Center Shreveport, Shreveport, LA, USA
2. Edward Via College of Osteopathic Medicine, Monroe, LA, USA
3. Beth Israel Deaconess Medical Center, Department of Anesthesiology, Critical Care, and Pain Medicine, Harvard Medical School, Boston, MA, USA
4. Department of Anesthesiology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA, USA
5. Creighton University School of Medicine, Phoenix, AZ, USA