|
|
A study on prevalence of hepatitis B surface antigen(HBsAg) in 1,292 grade-school children(548 of rural area, 744 of urban area) by Counterimmunoelectrophoretic method: various liver fuction tests and liver biopsy were performed, and the results obtained are as follows: 1) Fifty four of 1,292 children who were selected randomly were positive for HBsAg(4.2%) and incidence of HBsAg was higher in... |
