_:vb50942600 . _:vb50942600 "A Charcot-Marie-Tooth disease type 2 characterized by hearing loss and pupillary abnormalities and has_material_basis_in heterozygous mutation in the myelin protein-zero gene (MPZ) on chromosome 1q23."^^ . _:vb50942600 . _:vb50942600 . _:vb50942600 . _:vb50942600 "url:https://www.ncbi.nlm.nih.gov/pubmed/10071056"^^ . _:vb50942600 .