Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of 8p23.1 duplication syndrome ?
    ### Response:
    What are the signs and symptoms of 8p23.1 duplication syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for 8p23.1 duplication syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition.
    