title: [Differential diagnosis of nail dystrophy of obscure etiology].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009264:Nails, Malformed / Q000175:diagnosis* / Q000209:etiology
vernacular_title: Differentsial'naia diagnostika distrofii nogteĭ neiasnoĭ etiologii