HBsAg , anti-HBs , anti-HBc , and anti-HIV 1/2 were determined as part of routine diagnosis using Axsym assays ( Abbott Laboratories , North Chicago , IL ) .
B-ChemicalEntity O O O O O O I-OrganismTaxon I-OrganismTaxon O O O O O O O O O O O O O O O O O O O O