title: Detection of Australia antigen in blood samples collected on filter paper disks.
mesh_terms: D001800:Blood Specimen Collection; D005374:Filtration; D006506:Hepatitis A / Q000175:diagnosis; D006511:Hepatitis B Antigens / Q000032:analysis*; D006801:Humans; D008403:Mass Screening
chemical_list: D006511:Hepatitis B Antigens