1. Massachusetts General Hospital Institute for Technology Assessment Boston MA
2. Harvard Medical School, Massachusetts General HospitalBoston MA
3. Liver Center and Gastrointestinal Division, Massachusetts General HospitalBoston MA
4. Department of Industrial and Systems EngineeringGeorgia Institute of TechnologyAtlanta GA
5. Department of Health Policy and ManagementUniversity of Pittsburgh Graduate School of Public Health Pittsburgh PA
6. University of Pittsburgh School of MedicinePittsburgh PA
7. Department of MedicineGastroenterology and Hepatology, Baylor College of MedicineHouston TX
8. Houston Veterans Affairs Health Services Research and Development Center of Excellence, Michael E. DeBakey Veterans Affairs Medical CenterHouston TX