1. Altamed Health Services , Commerce, CA, United States
2. Department of Pediatrics, University of California, Los Angeles , Los Angeles, CA, United States
3. Office of Health Informatics and Analytics, University of California, Los Angeles , Los Angeles, CA, United States
4. Department of Medicine Statistics Core, University of California, Los Angeles , Los Angeles, CA, United States
5. Nationwide Insurance , Scottsdale, AZ, United States
6. Department of Medicine, Stanford University , Palo Alto, CA, United States
7. Department of Medicine, University of California, Los Angeles , Los Angeles, CA, United States