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Results 1 - 1 of 1 for Abnormality of the palpebral fissures
  1. Down Syndrome (For Parents) (Nemours Foundation)  
    ... copies of the 21st chromosome, genetic material, chromosomal abnormalities, karyotype, low muscle tone, muscle hypotonia, flat facial profiles, depressed nasal bridge, small nose, upward slant to the eyes, oblique palpebral fissures, dysplastic ears, single deep crease across the center ...