Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) mucolipidosis III alpha/beta ?
    ### Response:
    Mucolipidosis III alpha/beta is a slowly progressive disorder that affects many parts of the body. Signs and symptoms of this condition typically appear around age 3.  Individuals with mucolipidosis III alpha/beta grow slowly and have short stature. They also have stiff joints and dysostosis multiplex, which refers to multiple skeletal abnormalities seen on x-ray.
    