What you need to know about... Down's syndrome.
D004314:Down Syndrome / Q000175:diagnosis / Q000453:epidemiology / Q000235:genetics / Q000517:prevention & control; D018479:Early Intervention, Educational; D006801:Humans; D015994:Incidence; D008403:Mass Screening; D008423:Maternal Age; D018566:Pregnancy, High-Risk; D011296:Prenatal Diagnosis; D012307:Risk Factors