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  1. Chromosome 9 
    https://medlineplus.gov/genetics/chromosome/9
    ... structure or number of copies of chromosome 9. 9q22.3 microdeletion is a chromosomal change in which ... to cause the signs and symptoms related to 9q22.3 microdeletions. These signs and symptoms include delayed ...
  2. PTCH1 gene 
    https://medlineplus.gov/genetics/gene/ptch1
    ... 9 that is deleted in people with a 9q22.3 microdeletion. As a result of this deletion, ... believe that many of the features associated with 9q22.3 microdeletions, particularly the signs and symptoms of ...
  3. Gorlin syndrome 
    https://medlineplus.gov/genetics/condition/gorlin-syndrome
    ... be associated with a chromosomal change called a 9q22.3 microdeletion, in which a small piece of ... gene, and as a result, people with a 9q22.3 microdeletion are missing one copy of this ...
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