title: Excess males among siblings of Australian antigen carriers.
mesh_terms: D044383:Black People; D002353:Carrier State; D005260:Female; D005808:Genes, Recessive; D005828:Genetics, Population; D006506:Hepatitis A / Q000235:genetics*; D006511:Hepatitis B Antigens; D006801:Humans; D008297:Male; D008542:Melanesia; D012744:Sex Ratio
chemical_list: D006511:Hepatitis B Antigens