title: Atrichia with papular lesions and mental retardation in two sisters.
mesh_terms: D000052:Acanthosis Nigricans / Q000473:pathology; D000293:Adolescent; D000505:Alopecia / Q000235:genetics* / Q000473:pathology; D001706:Biopsy; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics*; D007642:Keratosis / Q000473:pathology; D009154:Mutation; D010375:Pedigree; D012871:Skin Diseases / Q000235:genetics* / Q000473:pathology