title: Australia antigen (HBsAg) in thallassemia children receiving multiple transfusions.
mesh_terms: D000914:Antibodies, Viral; D001803:Blood Transfusion; D002648:Child; D002675:Child, Preschool; D005260:Female; D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens; D006801:Humans; D007223:Infant; D008297:Male; D013789:Thalassemia / Q000276:immunology* / Q000628:therapy
chemical_list: D000914:Antibodies, Viral; D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens