title: Incidence of infectious hepatitis compared with the incidence of children with Down's syndrome born nine months later to younger and to older mothers.
mesh_terms: D000328:Adult; D001315:Australia; D004314:Down Syndrome / Q000453:epidemiology* / Q000209:etiology*; D005260:Female; D006506:Hepatitis A / Q000150:complications*; D006801:Humans; D007231:Infant, Newborn; D008423:Maternal Age; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000453:epidemiology*