title: Papillon-Lefevre syndrome: report of two cases.
mesh_terms: D000293:Adolescent; D002648:Child; D006801:Humans; D007645:Keratoderma, Palmoplantar / Q000235:genetics* / Q000473:pathology; D008297:Male; D010375:Pedigree; D010510:Periodontal Diseases / Q000235:genetics* / Q000473:pathology; D013577:Syndrome; D014080:Tooth Exfoliation