title: Preliminary data on the prevalence of anti-delta in Romania.
mesh_terms: D000956:Antigens, Viral / Q000032:analysis*; D006505:Hepatitis / Q000276:immunology / Q000382:microbiology; D003698:Hepatitis Delta Virus / Q000276:immunology*; D006801:Humans; D011863:Radioimmunoassay; D012383:Romania
chemical_list: D000956:Antigens, Viral