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Happy demeanor
- ... abnormal eye movements. Affected children often have a happy demeanor with frequent smiling and spontaneous laughter. Christianson syndrome ...
- ... this condition are often described as having a happy demeanor and being very friendly, although they can exhibit ...
- ... childhood.Children with Angelman syndrome typically have a happy, excitable demeanor with frequent smiling, laughter, and hand-flapping movements. ...
- ... Children with Pitt-Hopkins syndrome typically have a happy, excitable demeanor with frequent smiling, laughter, and hand-flapping movements. ...