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