Down Syndrome (DS)

Also known as: Downs Syndrome / Down's Syndrome / Trisomy 21 / Down Syndrome / Trisomy 21 (morphologic abnormality) / Trisomy 21 NOS / (Down's syndrome - trisomy 21) or (mongolism) or (trisomy 21) or (trisomy 22) / Syndrome Down's / Mongolism / Down's syndrome NOS (disorder) / Down's syndrome NOS / Complete trisomy 21 syndrome (disorder)