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