Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) LAMA2-related muscular dystrophy ?
    ### Response:
    LAMA2-related muscular dystrophy is a disorder that causes weakness and wasting (atrophy) of muscles used for movement (skeletal muscles). This condition generally appears in one of two ways: as a severe, early-onset type or a milder, late-onset form.  Early-onset LAMA2-related muscular dystrophy is apparent at birth or within the first few months of life.
    