Evidence of serologic activity in chronic hepatitis B after surface antigen (HBsAg) seroclearance documented by conventional HBsAg assay
PREVENTION OF CHRONIC HBsAG CARRIER STATE IN INFANTS OF HBsAG-POSITIVE MOTHERS BY HEPATITIS B IMMUNOGLOBULIN
EPIDEMIOLOGY OF HBV-ASSOCIATED DELTA AGENT: GEOGRAPHICAL DISTRIBUTION OF ANTI-DELTA AND PREVALENCE IN POLYTRANSFUSED HBsAg CARRIERS