title: Dizygotic twins with Down's syndrome.
mesh_terms: D003878:Dermatoglyphics; D004200:Diseases in Twins; D004314:Down Syndrome / Q000175:diagnosis / Q000235:genetics*; D005260:Female; D006801:Humans; D007223:Infant; D007621:Karyotyping; D008297:Male; D008423:Maternal Age