1. Department of Public Health SciencesHenry Ford Health System Detroit Michigan USA
2. Division of Gastroenterology and HepatologyHenry Ford Health System Detroit Michigan USA
3. Center for Health Policy and Health Services ResearchHenry Ford Health System Detroit Michigan USA
4. Division of Viral Hepatitis, National Center for HIV, Hepatitis, STD, and TB PreventionCenters for Disease Control and Prevention Atlanta Georgia USA
5. Center for Health ResearchGeisinger Health System Danville Pennsylvania USA
6. Center for Health ResearchKaiser Permanente–Hawai'i Waipahu Hawaii USA
7. Center for Health ResearchKaiser Permanente–Northwest Portland Oregon USA