_:vb50951884 . _:vb50951884 . _:vb50951884 "An ectodermal dysplasia that is characterized by palmoplantar keratoderma associated with early-onset periodontitis and has_material_basis_in homozygous or compound heterozygous mutation in the cathepsin C gene on chromosome 11q14."^^ . _:vb50951884 "url:https://en.wikipedia.org/wiki/Papillon\u2013Lefevre_syndrome"^^ . _:vb50951884 . _:vb50951884 . _:vb50951884 . _:vb50951884 . _:vb50951884 "url:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4507741/"^^ .