_:vb50942690 . _:vb50942690 . _:vb50942690 . _:vb50942690 . _:vb50942690 "url:https://www.ncbi.nlm.nih.gov/pubmed/10406984"^^ . _:vb50942690 . _:vb50942690 "A Charcot-Marie-Tooth disease intermediate type that has_material_basis_in heterozygous mutation in the myelin protein-zero gene (MPZ) on chromosome 1q23."^^ .