1. Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
2. Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, CA, USA
3. Department of Pediatrics, Children’s Hospital Los Angeles, Los Angeles, CA, USA
4. Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
5. Department of Radiology, Children’s Hospital Los Angeles, Los Angeles, CA, USA