1. World Organization, Watkinsville, Georgia, USA
2. Nevada Spine Center, Las Vegas, Nevada, USA
3. Kahramanmaraş Sütçü İmam University, Kahramanmaraş, Turkey
4. Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
5. Louisiana State University Health Sciences Center, New Orleans, Louisiana, USA
6. Tulane University School of Medicine, New Orleans, Louisiana, USA
7. VetMed Consultants, Inc., Santa Fe, New Mexico, USA
8. College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA
9. Stanford University, Stanford, California, USA