1. College of Osteopathic Medicine at the Cherokee Nation , Tahlequah , OK , USA
2. Office of Medical Student Research , Oklahoma State University College of Osteopathic Medicine at the Cherokee Nation , Tahlequah , OK , USA
3. Office of Medical Student Research , Oklahoma State University Center for Health Sciences , Tulsa , OK , USA
4. Department of Orthopedic Surgery & Rehabilitation , University of Oklahoma College of Medicine , Oklahoma City , OK , USA
5. Department of Internal Medicine , University of Texas Medical Branch , Galveston , TX , USA
6. Department of Psychiatry and Behavioral Sciences , Oklahoma State University Center for Health Sciences , Tulsa , OK , USA