title: Possible absence of Australia antigen in G-G translocation-type Down's syndrome.
mesh_terms: D003168:Complement Fixation Tests; D004314:Down Syndrome / Q000097:blood*; D006511:Hepatitis B Antigens / Q000302:isolation & purification; D006515:Hepatitis B virus / Q000302:isolation & purification*; D006801:Humans; D007621:Karyotyping
chemical_list: D006511:Hepatitis B Antigens