1. Department of Radiology; University of Florida; Gainesville; FL; 32605
2. CIRALE - INRA, USC INRA-ENVA, 957 BPLC; Ecole Nationale Vétérinaire d’Alfort; F-14430; Goustranville; France
3. Gail Holmes Equine Orthopaedic Research Center; Colorado State University; Fort Collins; CO; 80523