1. Liver Disease and Hepatitis Program, Alaska Native Tribal Health Consortium, Anchorage, AK, USA
2. Arctic Investigations ProgramDivision of Preparedness and Emerging Infections, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Anchorage, AK, USA
3. Division of Viral HepatitisNational Center for HIV/AIDS, Viral Hepatitis STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA