1. Department of Pediatrics, Division of Endocrinology, The Lundquist Institute of Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, USA
2. Department of Pediatrics, University of California, Irvine, School of Medicine, Orange, CA, USA
3. Office of Health Assessment and Epidemiology, Los Angeles County Department of Public Health, Los Angeles, CA, USA
4. Department of Medicine, Division of Endocrinology, The Lundquist Institute of Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, USA
5. David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA