1. Volume 125, Issue 2, Pages 444-451 (August 2003)
Hepatitis B virus genotypes in the United States: results of a nationwide study 
Chi—Jen Chu, Emmet B. Keeffe, Steven—Huy Han, Robert P. Perrillo, Albert D. Min, Consuelo Soldevila-Pico, William Carey, Robert S. Brown, Velimir A. Luketic, Norah Terrault, Anna S.F. Lok 
Gastroenterology 
Volume 125, Issue 2, Pages (August 2003)
DOI: /S (03)

2. Figure 1
The prevalence of HBV genotypes in different regions of the United States. The size of each pie is proportional to the number of patients enrolled.
Gastroenterology  , DOI: ( /S (03) )

3. Figure 2
Prevalence of PC and CP variants in relation to HBV genotypes and HBeAg status.
Gastroenterology  , DOI: ( /S (03) )