18-Trisomy in a 15-year-old girl.
D000015:Abnormalities, Multiple / Q000235:genetics; D000293:Adolescent; D002902:Chromosomes, Human, 16-18; D005260:Female; D006801:Humans; D007223:Infant; D008607:Intellectual Disability / Q000235:genetics; D007621:Karyotyping; D014314:Trisomy