1. Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of California San Diego School of Medicine, La Jolla, California, USA.
2. Department of Gastroenterology, Rady Children's Hospital, San Diego, California, USA.
3. Division of Biostatistics and Bioinformatics, University of California San Diego Herbert Wertheim School of Public Health and Human Longevity Science, San Diego, California, USA.
4. Altman Clinical and Translational Research Institute, School of Medicine, University of California San Diego School of Medicine, La Jolla, California, USA.
5. Liver Imaging Group, Department of Radiology, University of California San Diego School of Medicine, La Jolla, California, USA.