_:vb50940347 "url:https://pubmed.ncbi.nlm.nih.gov/26149975/"^^ . _:vb50940347 . _:vb50940347 . _:vb50940347 . _:vb50940347 . _:vb50940347 "A nonsyndromic congenital nail disorder that is characterized by white discoloration of the nails."^^ .