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