<prompt> Answer this question truthfullyWhich laboratory tests are used to diagnose Hepatitis B?  <response>: <reason> The following studies are used to examine pathological specimens for the presence of HBV -associated antigens or particles. They provide information about the relationship between HBV DNA replication and HBV gene expression.Immunofluorescence studies In situ hybridization Immunohistochemistry Thin-section electron microscopy 