_:vb50938731 "An early-onset Parkinson's disease that has_material_basis_in homozygous or compound heterozygous mutation in the DJ1 gene on chromosome 1p36."^^ . _:vb50938731 . _:vb50938731 . _:vb50938731 "url:https://www.ncbi.nlm.nih.gov/pubmed/22315721"^^ . _:vb50938731 . _:vb50938731 . _:vb50938731 .