1 Cedars-Sinai Center for Outcomes Research and Education, Los Angeles, California; Division of Digestive and Liver Diseases, Division of Health Services Research, Division of Informatics, Cedars-Sinai Medical Center, Los Angeles, California.
2 Cedars-Sinai Center for Outcomes Research and Education, Los Angeles, California; Division of Digestive and Liver Diseases, Division of Health Services Research, Division of Informatics, Cedars-Sinai Medical Center, Los Angeles, California. Electronic address: [email protected].