Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) 15q13.3 microduplication syndrome ?
    ### Response:
    15q13.3 microduplication syndrome is a rare chromosome abnormality first described in 2009. Since only a small number of individuals with this microduplication have been reported, the full range of effects is still being discovered. What is known is that the symptoms are variable, even between members of the same family.
    