| skos:altLabel | - 21
- Down
- DS
- translocation
- disabled
- mongolism
- mongoloid
- mong
- trisomic
- Down Syndrome
- Down Syndrome Awareness
- Down syndrome (DS)
- Down syndrome#History
- Down syndrome#Mosaicism
- Down's Syndrome
- Down's syndrome
- Down_syndrome#History
- Downs Syndrome
- Down’s Syndrome
- Mongoloid
- down syndrome
- ds
- transient myeloproliferative disorder
- trisomy 21
- trisomy 21 (Down syndrome)
- trisomy 21 (a form of Down syndrome)
- trisomy-21
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