title: Twenty-nail dystrophy of childhood: a reappraisal.
mesh_terms: D002648:Child; D002675:Child, Preschool; D006801:Humans; D009260:Nail Diseases / Q000145:classification* / Q000209:etiology / Q000473:pathology; D009262:Nails / Q000473:pathology; D009626:Terminology as Topic