Evaluation of Signal/Cut-off Ratio by Anti-hepatitis Delta Virus Enzyme Immunoassay Method in the Diagnosis of Hepatitis Delta Virus Infection Journal title: Viral Hepatitis Journal Authors: Ayfer Bakır, Nuran Karabulut, Sema Alaçam, Murat Yaman, Mustafa Önel, Ali Ağaçfidan Subject(s): Medicine