[1] Ctr Dis Control & Prevent, Div Viral Hepatitis, 1600 Clifton Rd, Atlanta, GA 30329 USA
[2] Henry Ford Hlth Syst, Detroit, MI USA
[3] Geisinger Hlth Syst, Danville, PA USA
[4] Kaiser Permanente Northwest, Portland, OR USA
[5] Kaiser Permanente, Honolulu, HI USA
[6] Ctr Dis Control & Prevent CDC, Natl Ctr HIV Viral Hepatitis STD & TB Prevent NCH, Div Viral Hepatitis, Atlanta, GA USA
[7] Geisinger Med Clin, Dept Epidemiol & Hlth Serv Res, Danville, PA USA
[8] Kaiser Permanente Hawaii, Ctr Hlth Res, Honolulu, HI USA
[9] Kaiser Permanente Northwest, Ctr Hlth Res, Portland, OR USA