Observational Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Jul 7, 2015; 21(25): 7842-7850
Published online Jul 7, 2015. doi: 10.3748/wjg.v21.i25.7842
Figure 1
Figure 1 Age, gender-specific prevalence of hepatitis B surface antigen in China.