1. Department of Orthopaedic Surgery, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico
2. Department of Orthopaedic Surgery, Hospital of the University of Pennsylvania, Philadelphia
3. University of Puerto Rico School of Medicine, Medical Sciences Campus, San Juan, Puerto Rico
4. Universidad Central del Caribe School of Medicine, Bayamon, Puerto Rico
5. Pediatric Orthopaedic Surgery Department, Mayagüez Medical Center, Mayagüez, Puerto Rico