1. Hyperbaric Medicine Department, Department of Medicine, Section of Emergency and Hyperbaric Medicine, Louisiana State University Health Sciences Center, New Orleans, Louisiana.
2. Department of Medicine and Psychiatry, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, Louisiana.
3. Department of Radiology, University of North Dakota School of Medicine and Health Sciences, Bismarck, North Dakota.
4. University of California, Irvine, School of Medicine, Amen Clinics, Inc., Newport Beach, California.
5. Department of Medicine, Georgetown University Medical Center, Washington, D.C.
6. Administrative Office, New Orleans, Louisiana.