title: Lack of relationship between Down's syndrome and maternal exposure to Australia antigen.
mesh_terms: D000906:Antibodies / Q000302:isolation & purification; D001769:Blood; D004314:Down Syndrome / Q000209:etiology* / Q000276:immunology; D005260:Female; D006506:Hepatitis A / Q000276:immunology; D006509:Hepatitis B; D006511:Hepatitis B Antigens; D006515:Hepatitis B virus; D006801:Humans; D005779:Immunodiffusion; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious; D014470:Umbilical Cord
chemical_list: D000906:Antibodies; D006511:Hepatitis B Antigens