1. Department of Orthopaedic Surgery, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico.
2. Department of Internal Medicine-Pediatrics, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico.
3. Department of Surgery, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico.
4. School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico.
5. Department of Pediatric Orthopaedic Surgery, Mayaguez Medical Center, Mayaguez, Puerto Rico.