title: Twenty-nail dystrophy (trachyonychia) associated with selective IgA deficiency.
mesh_terms: D004406:Dysgammaglobulinemia / Q000150:complications*; D006801:Humans; D017098:IgA Deficiency; D007223:Infant; D008297:Male; D009260:Nail Diseases / Q000150:complications* / Q000276:immunology