title: Frequency of Australia antigen in patients with leukaemia in different countries.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001803:Blood Transfusion; D002170:Canada; D002648:Child; D002675:Child, Preschool; D003718:Denmark; D005260:Female; D005387:Finland; D006506:Hepatitis A / Q000150:complications / Q000453:epidemiology*; D006515:Hepatitis B virus / Q000302:isolation & purification*; D006689:Hodgkin Disease / Q000453:epidemiology / Q000276:immunology*; D006801:Humans; D007223:Infant; D007945:Leukemia, Lymphoid / Q000453:epidemiology / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D014481:United States